This is a ridiculous contest. The characters of It's Always Sunny were basically written to be the scum of the Earth, and you put them in a "Who is worse vs x?"
Substitute any show in there except maybe South Park and Sunny is gonna crush every time.
Community might get one W out of this whole thing with Jeff vs. Charlie because Winger has enough intelligence to consciously manipulate people unlike Charlie who bumbles into his schemes.

Point being, either pick a different show, or change the contest from "Who is Worse?" to something else - otherwise you're just wasting your own time, dude.

Community vs It's Always Sunny: Day 2 (Chang vs McPoyle Brothers)

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