Saw this at a preview a couple weeks ago.
The two plotlines were almost like different movies. It was almost TV-ish the way they barely intersected.
The plots followed the same theme, of high school loser angst/bravado, but Fogel gets a couple guardian angels who empathize with him, while Evan and Seth go from one bad situation to the next. I think the Seth and Evan plot is better, just because schadenfreude makes things funnier.
(That's one of the reasons Adam Sandler has been so awful the last decade. His movies are all about him being awesome and showing the squares what for. Mary Sues kill comedy.)