Ive seen Racketeer Rabbit probably a few dozen times. I loved it, but theres so many elements in it that would be considered taboo for kids by todays standards. Bugs Bunny has always been a favorite.

Moving forward all the Looney Tunes were great IMHO, and the mashup with Disney characters in Who Framed Roger Rabbit is likely the apex of cartoons before 3D and other techniques took over.

As for stuff id intentionally make time to try to watch.. Speed Racer, Danger Mouse, The Smurfs, Talespin, Pinky and the Brain, Bonkers, Ren and Stimpy, The Tick, Daria.