Tom and Jerry were OK but down the list a little for me.
My favorite cartoon show of all times was the 90 minute Saturday morning packaging of the Looney Toons shorts dubbed "The Bugs Bunny/Road Runner Show". I wouldn't care for an extended viewing of any single Loony Toons character, so for me I always consider them one entity
I'd also put the Flintstones and The Jetsons much higher on my list than T&J.