Man, I remember when I first came to this site...the most popular thing to do here was to complain and bash "the new stuff". Now, complaining about the new stuff is very unpopular, and defending the new stuff is popular. My how times have changed.
Despite this, I'm going to throw my two cents in about today's cartoons. Nobody can deny that cartoons these days are more sugar-coated for kids, and revolve much more around humor than action and adventure. That's probably why anime became so popular here over the last decade...cause American cartoons just weren't violent anymore (except the ones that were styled after anime). The thing that really bugs me the most about the cartoons of today, however...is the animation. I just feel that the animation in most shows today is slapped together really fast with no effort involved. Not all cartoons have this crappy animation, but a good majority of them do. Good examples are Billy & Mandy, Fairly Odd Parents, Chowder, Foster's Home for Imaginary Friends, etc. The animation in those shows look like something a kid doodled while he was in school.