Powerpuff Girls, ATLA, Samurai Jack, Looney Toons, early Simpsons, Futurama, Kim Possible, Star Wars Rebels, Star Wars Clone Wars, Fairly Odd Parents (earlier seasons), and Animaniacs.
Ones I loved as a kid that I don't really watch now: Jimmy Neutron, Dexter's Lab, Ben 10, Danny Phantom, Johnny Bravo, Justice League and other Superman-related cartoons, X-Men Evolution, Shaun the Sheep, W.I.T.C.H (actually I'm feeling the urge to rewatch this one), Invader Zim, CatDog, Grim Adventures of Billy and Mandy, Courage the Cowardly Dog, Cow and CHicken, and Tiny Tunes.
Re: Based on #2
Ones I loved as a kid that I don't really watch now: Jimmy Neutron, Dexter's Lab, Ben 10, Danny Phantom, Johnny Bravo, Justice League and other Superman-related cartoons, X-Men Evolution, Shaun the Sheep, W.I.T.C.H (actually I'm feeling the urge to rewatch this one), Invader Zim, CatDog, Grim Adventures of Billy and Mandy, Courage the Cowardly Dog, Cow and CHicken, and Tiny Tunes.