Avataar is an American made Anime. It is currently the most watched cartoon series in US, Naruto is ranked at number two. Avataar is still in its second season and unlike Naruto which releases every week, Avataar releases every 2 weeks. So there will be only 26 episodes per year. I belive that there are 5 books to be covered, and every season is based on one book. Every season is 20 episodes, so one can expect another 2 years+ before the series end.
I kinda find this boring.....Instead I will wait and then watch all at one go.
Naruto is currently at episode 214 and 219 supposly will be the last filler after which it will resume its story based on Manga. There will be a timeshift.......the new Naruto starts in Feb 2006 and the series will be called Naruto Hurricane Chronicles.
The name change format is similar to Dragon Ball series, where it is DB-Z and DB-GT. DBZ is currently no where near to todays standards, if you see Naruto or any other good anime before DBZ, then you wont like DBZ. But, one is forgetting that DB started the Fighting Anime Kraze......similar to 36 Chamber of Shaolin.......One can easily say that Dragon Ball is the inspiration to all the fighting anime made afterwards.
Just for kicks, the first epsiode of Dragon Ball was aired over 25 years ago. It was mind blowing during that time.