I'll have to check out some of the stuff posted here. I'm always interested in something new if it's good.
But what I mean by that is that Avatar was different than most shows I've seen. When it comes to fights, it mimics Disney more than other stuff in certain ways. Now I'm sure I'll catch a bit of flak for this but Kim Possible had some good fighting in it. (used to watch that however long ago)
Going back farther, Aladdin had some pretty good Sword fights and there were probably a couple other shows that I forget.
But what made Avatar stand out in terms of fights was that it didn't always come down to each character's power. The fights were very technical and intense. It wasn't always hurling a giant ball of energy at the other guy or spending the entire sequence getting wrecked, only to transform at the last minute and wipe the other guy out in one blow. The fights went back and forth a lot and the didn't waste much time staring each other down and getting all sentimental about their past.
Not that the show was perfect, what I said might look like massive praise, but I'm just pointing out what I liked in it.
I really appreciate that type of fight most. Naruto, Bleach, and yes, even Dragonball Z get into those types of sequences occasionally. When they do, it's great, but mostly it's just filler scenes and flashbacks the whole time.
That kind of stuff makes sense when it comes from a Manga first. The big splashes, quickly scrolling backgrounds, extra emphasis and detail on every move... You really can't show an extensive action sequence in still images the same way you can with a fully animated video. A lot of Animes are still very rooted in the Manga that they came from, not just content, but overall style. (not that that's really a bad thing, just my opinion)
I'm sure all that's been said a thousand times though. I don't usually end up discussing a anime a lot. Not many people I know even watch any, perhaps I'll find some good stuff here.