Most of the modern stuff I can't stand! Give me Disney (before Walt died), All the old Warner Bros shorts up to the early '60's, all the Hanna-Barbera, Tex Avery and Chuck Jones shorts from MGM, all the Fleischer Bros/Famous studios from Paramount up to about 1960, all of Walter Lantz's output, as well as Charlie Mintz's work from Columbia (a lot of what could pass for Disney from the same era), Jay Ward, as well as Paul Terry (until his death and his entire studio's output was sold to CBS, and was never seen or heard from again.
Part of my issues with anything produced after 1960, with the exception of some of the material coming from IPA (Mr. Magoo, Gerald McBoing-Boing), some of the newer Warner Bros output (Animaniacs, Freakazoid!) and newer Disney TV output (Duck Tales, Dark Wing Duck, Kim Possible, Jake Long-American Dragon, Phineas and Ferb) is that they're too generic, done on the cheap, and are boring and stupid. A lot of the shows I listed in this paragraph were outsourced to Asian studios, so it's safe to say that the art of Anime comes showing through these shows.
Lately, a lot of the shows on Sprout have been catching my interest, although I can only stomach those shows for a small amount of time. I don't know if it's my age, or because of my ever decreasing short attention span.