I would have to go with Tommy Boy. I loved all of Chris Farley movies and this one is probably his best one he made.
I agree with "I'm Gonn Get You Sucka!" But my number 1 has to be the original "Dumb and Dumber". Thinking of how hilariuos it was reminds me of how horrible the second one was!!
finally, i can see some else hated the second movie as well. as for the monty python movies, i think the quest for the holy grail was better. "What makes you think she's a witch? Well, she turned me into a newt. A newt? ...I got better."
baabaa beat me to it but I agree 100% [bold]Happy Gilmore[/bold] is the funniest and best movie IMO with Fast Times at Ridgemont High in second Then probably "Theres Something About Mary"