I've seen so many of his videos that it's hard to know which ones are my favorite. I'm guessing that my favorite serious ones are the "The Most Boring Taste in Anime" and "Anime Shit Now?!" because both are so well done. The 2nd one really gives perspective on anime production and the first one really made me realize not to give a fuck about "normal" tastes.
his Pro Crastinators stuff and his videos with Best Guy Ever on Eromanga is probably his funniest shit.