I could only buy ONE RPG! What should it be?

[CrOnO_LiNk]

Ok, this Friday, I am gonna buy that "ONE" RPG.

I already own Kingdom Hearts, FFX, Golden Sun, and Tactics Ogre.

Those are the only RPG's I own for the new generation of consoles/portables.

So what should it be?

It has to be an RPG. I want an awesome story, very good gameplay, characters to be good, and music to sound decent.

So what RPG can I get this year that'll please me?