I also like the fact that a lot of anime doesn't take itself overly serious, even the "serious" series usually have someone whos a good "comic relief" or else they occasionally drop in a funny visual or verbal joke.
But one thing that does bug me is that even in series based solely in Japan, including ones based around school-age characters, an awful lot of them look caucasian. Its like they have some issue with doing themselves in animation. Stuff that takes place all over the world I can see (ie- Gundam wing, in which the main characters were a Japanese, a Chinese, an American, a blond-haired, blue eyed Middle Easterner, and an 'unknown'), but some of it stretches things a bit.