I know it sounds bad, but anime that tries too hard to look real isn't as appealing to me. Final Fantasy can be the epitome of it, but Grave of the Fireflies and Jin-Roh also do this. BUT! In GotF and Jin-Roh they match the style of the movie. Final Fantasy doesn't reflect reality, its a FANTASY story, it should not be using lifelike looks, it should be big eyes and have the cel painted look (even though that's done on computers anyway, these days.).
Another not-so-good example of attempted more lifelike look was the Esca movie. Hitomi looked like crap in that, and Esca is a high fantasy series, not suited for a lifelike look.
Hehe, yes, bad digital animation, Initial D has some pretty bad digital animation on the cars.
Styles that I like though, Clamp's style is good, though sometimes its hard to tell the guys are guys
One that I recently saw whose style I absolutely loved was King of Bandits; JING. VERY cool, and VERY Pretty.
There are a lot of styles I like though. Adolesense of Utena is the most gorgeous piece of animation I have seen to date.