From best to worst:
1. Knocked up
2. Observe and report
3. Funny people
4. Neighbors
5. Sausage party
6. Pineapple express
7. The interview
8. This is the End
9. Zach and miri make a porno
10. 50/50
I'm omitting a few because I wanted to keep it to 10. I left out superbad because even though he wrote it, hes not a main character, also omitting 40 year old virgin for the same reason