Martin is for people who like that what I call "wacked out" comedy. That Steve Harvey, Cedric "Ahahaaaaaa" type stuff. I could never get into Martin cuz I always felt it was kinda corny. Didn't care for "Shanaynay" and all these different characters. Felt corny and try hard. I don't like when a show/comedian makes me feel like I'm supposed to laugh. Just give me the joke and I'll decide if it's funny or not. I don't care how many wigs and funny faces you make.
Fresh Prince is a show that'll catch you laughing even when it's on in the background and you're not really paying attention just by listening to how everyone is interacting with each other. The thing is EVERYBODY on Fresh Prince was funny. Carlton

, Geoffrey, Hilary, Ashley, Dark Skin Aunt Viv, the Big Guy.. everyone had their moments and it was unintentional humor. Even little Nicky. Mainly just off the rip comments and shade throwing that made the jokes 10x funnier.
Fresh Prince felt like you were a fly on the wall of a funny family household.
Plus Fresh Prince wasn't "just" comedy. They had deep episodes, they had lessons and morals. They had conscious material. It had a little bit of everything.