I'm ranking the Mario cartoons from most to least tolerable.
The Adventures of Super Mario Bros. 3
The only show that wasn't incredibly stupid in some way, it was still bad, but not as bad as the other 2.
The Super Mario Bros. Super Show!
It was better than the SMW series, but it had an obsession with rap (making a whole episode of it) and it apparently had another show where Mario and Luigi are actual people. (Plus Mario has Pac-Man eyes. Your argument is invalid.)
Super Mario World
Ugh. This show was so bad, it only had like fifteen episodes. It has the most idiotic morals possible (remember, kids, don't eat junk food unless you want to become a chicken-pterodactyl hybrid), Mario sounds like a world-class grouch, Bowser has laughably bad evil plans (sending the Koopalings to school), the Mama Luigi Poops are as overrated as all *bleep*, and the cavemen are just stupid (Well-written characters? ME NO LIKE!)