Uhhh that game is like months and months old dude. Countless thousands have played it.
I think its freaking awesome. Some new combo's make combat more complex and satisfying. Z items have more growth, and you can transform in battles. Its much better than BT1. And its been so long since budokai 3 I cant really say which one is better. I would probably go with BT2 though since it has more characters.
Now if they could just throw in 2-3 more fighting elements it could make a run at Soul Calibur for best fighter. More complex throws and some more combo's, it should also be easier to break combo's.