My favorite childhood cartoons of all are still favorites today--the Warner Brothers cartoons! Fortunately they're the kind of cartoon you can still love as an adult
Special favorites, then and now, include:
1) The Road Runner/Wile E. Coyote cartoons. It's still amazing how much enjoyment you can get out of cartoons that have no dialogue at all (unless you count the Coyote's periodic signs saying stuff like "How about ending this cartoon before I hit?")
2) The "hunting trilogy" with Bugs Bunny, Daffy Duck and Elmer Fudd. These are the ones where Daffy's beak gets blasted about a thousand different ways.
3) All the "genre parodies" that also featured Daffy, often with Porky Pig as a sidekick as the egotistical duck tried to be a swashbuckling hero, a "Western-type hero," an outer space hero, etc.
"May the hinges of friendship never rust, nor the wings of love lose a feather"--Scottish blessing