You could easily argue that Pep's war segment was superior, and JPs was the best segment in War... so... I'd say there are arguments to be made for many. Tanner in SM3 is a contender. Abma in yearbook is probably disqualified on account of the song choice, but you could make a case for it... One of the most underrated segments out there is Pep's in Focused, as well, since 1242 got all the attention. Just because there are 3 "favourites" doesn't mean that they're the "only options".
I find myself watching JP and Seth in UP1.2 a lot too. It's just good stuff.