How 'bout the original (before the series) Duck Dodgers in the 24th century cartoons with Daffy & Marvin the Martian?
Bugs and Marvin were good too & I believe there were a couple with Bugs & Daffy & even Elmer & Porky as well with Marvin. When I was really young, my favorites were Sylvester & Tweety and also The Roadrunner & Wile E. Coyote.
the ones with Daffy & Porky might be funniest of all.