Your favorite western cartoon/animation

I loooooooooved watching Avatar: The Last Air Bender with my closest friends in high school.
I grew up on titles like Kablam, Catdog, Ren and Stimpy, Hey Arnold, AHHHHH Real Monsters!! and Ed, Edd n' Eddy.

I had a huuuuuuuuuge obsession in middle school with the French series, Code Lyoko. Dear goodness, I was the authority on Code Lyoko trivia. I'm definitely back on my Code Lyoko kick though. Old obsessions die hard :P