The Amazing World of Gumball or Mad
Actually both have gotten mostly positive reviews, I will admit I don't care much for mad overal myself, But I see nothing wrong with gumball, I find it quite creative to incorporate all the diffrent styles of animation into one show, hand-drawn, CGI, Stop-Motion characters all living in the same world, pretty neat concept if you ask me.
Now I will admit the episodes themselves are lacking at times, but the series overall is hardly anywhere near the worst cartoon ever or a bad cartoon in general. (again tottally gonna keep defending shows till the name of this thread is changed.)
But to keep on topic, I did find the Tottally Spies Spin-off Amazing spies to be rather sub-par, yes I know its french and not american or canadian, but its still a toon dag nab it, lol.