I'd say the anime is definately better for the first 25 episodes, but as soon as the anime diverges from the manga it turns into turdcakes, and then anime's separate story line is quite awful, although the animation quality is quite good. But im assuming you dont watch an anime for its animation quality, but its story.
and people often say that your opinion is based on what you saw first, however, I saw the anime first (I didnt know it was based on a manga at the time), and by the end I was like... what the hell happend it was going so well and then it turned into crap!?! Then later on I found that manga, and found that it continued on from where the anime diverged... and the story was much better, and I think its a pretty cool series.
