Above the Law used to be a forum largely dedicated to law firm associates bemoaning their treatment at their “TTT” (third-tier toilet). But now the Above-the-Law substack does a splendid job of covering law industry topics. David Lat is a knowledgeable and fair-minded commentator. He is smart. He did, after all, work at Wachtell. He has informed connections. Last week, Above the Law discussed how to rank the federal judicial circuits by importance. If “importance” hinges on caseloads or population, the Ninth Circuit is comfortably in first place. By contrast, applying those same criteria, the D.C Circuit is a cellar-dweller. Then again, if “importance” refers to prestige, which is a function of high-profile cases and feeding judges and clerks to the Supreme Court, then the D.C. Circuit vaults to the top. Four of the nine current SCOTUS Justices were formerly D.C. Circuit judges. (Roberts, Thomas, Kavanaugh, and Jackson.) Justice Sotomayor is from the Second Circuit, Alito the Third Circuit, Coney Barrett the Seventh Circuit, and Gorsuch the Tenth Circuit. Justice Kagan came straight from academia. (As a former Ninth Circuit clerk, we are appalled that the Ninth Circuit is unrepresented on the High Court. And as a U. of Chicago grad, we are miserable that nobody from our school has ever made the cut.)
The Second Circuit, with hegemony over financial industry cases, usually slots in second in prestige. Judge Henry Friendly was very highly regarded. So was Judge Amalya Kearse and many other Second Circuit judges. Have you ever heard of Learned Hand? Then the Ninth Circuit is in the show position, because size matters. Before he was elevated to SCOTUS, Anthony Kennedy was a feeder judge. So was Cliff Wallace. So was Alex Kozinski until, well, things ended badly. Collins, Fletcher, and Friedland are strong feeder judges. Bumatay is thought to be on the SCOTUS short list. Van Dyke is … notorious.
The point of the Above the Law article is that the factors driving circuit “importance” are somewhat dynamic. For a while, the Seventh Circuit enjoyed outsized significance when Posner, Easterbrook, Wood brought Chicago school law and economics heft to their opinions. But Posner and Wood retired, and the Seventh Circuit might have lost some luster. (And we will never forgive it for Bausch.) Further, the roster of feeder judges has now spread well beyond the Acela corridor. Some of the most prized clerkships are now in, for example, the Fifth Circuit, where Judges James Ho and Andrew Oldham (both U. of Chicago grads) are on the Republican short list for future SCOTUS appointments. Judge Amul Thapar is also on that list, and he is in the Sixth Circuit. (For many years Sixth Circuit Senior Judge Danny Boggs was viewed as a future Justice. One Boggs clerk referred to Boggs as the Brazil of Circuit Judges – always mentioned as the next Big Thing, but never quite getting there. Boggs was famous for administering a brutal quiz to clerkship applicants. Questions included: What is measured by an anemometer? Distinguish Roy M. Cohn from Roy G. Biv. Who had a famous Last Theorem? Last Tape? Last Stand?) On the Eleventh Circuit, Judges Pryor, Brasher, and Newsom (Chicago!) place many clerks with SCOTUS. Naturally, we have a soft spot for the Third Circuit. We can see its courthouse from our window. The quality of writing is quite high in the Third Circuit. Judges Bibas, Krause, and Hardiman, for example, wield sharp pens.
We encourage our Penn Law students to consider applying for clerkships. Save for those few students for whom a SCOTUS clerkship is a realistic possibility, our advice is that location does not matter much. To be sure, there is nice c.v. value to having a clerkship in the circuit where one ends up working. But the central truth is that the privilege of working on judicial opinions is instructive and enjoyable. (Mostly. From what we can tell, 90% of judicial clerkships are terrific jobs, while the unpleasant clerkships with ogre judges are a very small minority). Our judge, William Norris (Ninth Circuit), would sit next to us at the keyboard as we edited opinions line by line. It was a fabulous learning experience.
The Above the Law article got us thinking about how we would rank the circuits with respect to drug and device law opinions. Inasmuch as preemption is our favorite defense, we figured that the D.C. Circuit would be in the mix in a big way. (Spoiler alert: we were wrong about that.) We hypothesized that the proliferation of pharmaceutical companies along I-95 would result in many consequential Third Circuit opinions, and the locations of device manufacturers would do something similar for the Seventh Circuit. If importance can also include the bad sort, we posited that the Ninth Circuit’s matador treatment of Rule 702 would be prominent.
How to test these ideas?
We decided to canvas our blog’s Top Ten Best and Worst lists for 2020-2025 (so that is six years) to see how the circuits lined up. We took into account only federal cases, of course, and added up numbers looking both at circuit cases, as well as district court cases grouped by circuit. It is hardly a perfect methodology. The sample size is definitely too small. There is also a danger of double (or worse) counting. Some litigations produced multiple opinions, sometimes on both the district and circuit court levels. More on that later.
Here are the cases we counted for each year:
2020 best: Mirena (2d), Taxotere (5th), Dolin (7th), Viagra (N.D. Cal.), Keen (E.D. Pa.), Ridings (W.D. Mo)
2020 worst: Kaiser (7th), Booker/Bard Filters (9th), Gremo (D.N.J.), Gross (E.D. Pa.), Genentech (10th), Valsartan (D.N.J.)
2021 best: Brooks (10th), Zofran (D. Mass.), Salinero (11th), Ignacianos (2d), Taxotere (5th), Incretin (S.D. Cal.), Zantac (S.D. Fla.)
2021 worst: Bair Hugger (8th), Hamer (3d), Blackburn (11th), Valsartan (D.N.J.), Gaetana (D.N.J.), Johnson (E.D. Mo.), Smith&Nephew (D.Md.), Munson (N.D. Miss.), Abrams (9th), Fluoroquinolone (D. Minn.), Allergan (D.N.J.)
2022 best: Nexus Pharms. (9th), Zantac (S.D. Fla.), Fosamax (D.N.J.), Nelson (5th), City of Huntington (S.D. W. Va.), Onglyza (E.D. Ky.), Zostavax (E.D. Pa.)
2022 worst: Nicholson (8th), Thacker (6th), Jacob (11th), DeCostanza (E.D.N.Y.), Bueno (S.D. Cal.), Blackburn (11th)
2023 best: Zofran (1st), Cates (11th), Acetaminophen (S.D.N.Y.), Fresenius (D. Mass.), Kampmann (C.D. Ill.)
2023 worst: Valsartan (D.N.J.), Painters (C.D. Cal.), Sykes (7th), Holley (N.D. Cal.), Wilson (S.D. Ill.), CPAP (W.D. Pa.), Crockett (E.D. Pa.), Keralink (4th)
2024 best: Hickey (5th), Onglyza (6th), Bueno (S.D. Cal.), Dickson (W.D. La.), Zostavax (3d), Oglesby (5th), Oral Phenylephrine (E.D.N.Y.)
2024 worst: Fosamax (3d), Huertas (3d), Valsartan (D.N.J.), Dressen (D. Utah), Ahmed (D. Ala.)
2025 best: Sprafka (8th Cir.), Gardasil (4th), Wilson (S.D. Ill.), Valsartan (D.N.J.), Gardasil (W.D. N.C.), DepoProvera (N.D. Fla.), Peptides (E.D. Pa.)
2025 worst: City of Huntington (4th), Dibble (8th), Avandia (E.D. Pa.), In re Phillips (W.D. Pa.), CLF 007 v. Cooper Surg. (D. Or.), Boncher (E.D. Pa.), Hollestein (D.N.J.), Thacker (E.D. Ky.)
What do these results tell us? First, there are no D.C. Circuit cases. None. Let that be a monument to our prescience. Second, federal cases make up approximately two-thirds of the cases on our Best and Worst lists. A decent chunk of the action remains in state courts. That is not much of a surprise. We all know that most plaintiff lawyers prefer to be in state courts. Maybe we should do a separate analysis of the state cases.
Another thing you notice is that, wow, rotten opinions from the Valsartan MDL really were as numerous as cockroaches in a greasy spoon joint. Thankfully, there is a new sheriff in town for that case. That is why, after years of crowding our Worst lists, a Valsartan opinion made it onto our last Best list. There are, of course several repeat players besides Valsartan: Blackburn, Bueno, Thacker, Fosamax, Taxotere, Huntington, etc. Some cancel each other out (reversals), and some compound things (affirmances). Look, we are not doing a regression analysis here.
For the good cases, if we look strictly at circuit court rulings, the Fifth Circuit has four cases, which is double that of its nearest competitors, the Second and Eleventh Circuits. If we count the lower court decisions, the Third Circuit leaps up to tie the Fifth Circuit, with six cases. The Second and Ninth Circuits each produce four decisions if you count the lower courts.
For the bad cases, if we look strictly at circuit court rulings, the Third, Eighth, and Eleventh Circuits lead the pack with three decisions each. If we count the lower court decisions, things get kind of crazy. The Third Circuit now has 17 decisions, far more than the seven from the Ninth Circuit or six from the Eighth Circuit. What does that off-the-chart number tell us? Does it confirm that the Pennsylvania and New Jersey courts hog the pharma caseload? And in a really bad way? Or does it simply mean that the location of most of the DDL bloggers in Princeton and Philly makes us a bit short-sighted? Maybe there should be a DDL version of that famous New Yorker cartoon; Philly and Jersey occupy most of the landscape, with far-flung jurisdictions barely in view at all. Perhaps what really matters is the friends we have made along the way, and most of our friends are hunkered down along the Delaware River.
Did you notice that Acetaminophen case from our 2023 Best list? This year the Second Circuit reversed. That opinion is a strong candidate to make our 2026 Worst list. Oh well.
So there it is. Subject to the tyranny of small numbers, seasoned with a moderate dose of selection bias, what we learn is that good and bad DDL cases are all over the place. The Third Circuit is important as a vast mixed bag. Consider that hypothesis at least partially validated. The Fifth Circuit is pretty good for our side of the v. The Ninth Circuit? Not so much. What else is new?
To be sure, we are not announcing any firm, major conclusions from this review. We certainly would not suggest that the database and methodology we deployed would pass a Rule 702 inquiry.
Except maybe in the Ninth Circuit.




