Stewie Griffon
It's Spelt Stewie GRIFFIN not Griffon. LEARN TO SPELL.
Stewie is a 1 year old son of Lois and Peter Griffin. His life goal is to kill his mother and take over the world. He is the COOLEST character by far and the special episodes of him and Brian are the best. 
Quotes: *he goes to hell*"Hell, well thats a bit much don't you think. I mean sure I've tried to spend my entire life trying to kill my mother, but who hasn't?" This thing wont let me enter this without saying Stewie Griffon. There, I said it.