Humor is so subjective. That's why community votes matter when it comes to deciding what the funniest movies of all time are, as this video shows.
What's your sense of humor like? Is it satirical (Monty Python and the Holy Grail)? Is it dark (Burn After Reading)? Is it romantic (There's Something About Mary)? Is it teen angst (Ferris Bueller's Day Off)? Is it Billy Murray (in anything)?
The funny thing about funny movies is that they can be really polarizing. Sense of humor is so personality-based, it's hard to define, to predict, and to mold.
Watch this video and see if you agree with the top five choices, then grab a cold one and re-watch The Hangover. You're either gonna laugh in love or laugh in pure exasperation - and that's what makes superlatives so fun.