Improv and comedy groups (question from an incoming freshman)

Hi guys! I’m gonna be a freshman next year. I love improv and sketch comedy, and have a good deal of experience in it, so I plan on auditioning for one of the comedy groups next year. Does anyone have any dirt on which are best, what each of their reputations are, the kind of kids who join each one, etc.? Also how hard they are to get in to? Thanks, any info would be great!