Wow this is tough. I really am an animation junky, so every ten seconds I can think of another all time favorite... but I'm gonna try to narrow it down to just a few, some of which seem very popular here on the 'drome. I guess that I'm not the only one with good taste
TMNT, both the OT and 2k3
The Tick
Futurama
Cowboy Bebop
Duck Tales
Darkwing Duck
Talespin
COPS
Samurai Jack
Sealab 2021
The Boondocks
American Dad
The Simpsons
Storm Hawks
Alright so a few turned into like more than 10, so I'm gonna stop before I think of ten more.