I don't know, but I have some sort of love-hate relationship with Sen's ending (only watched it on youtube, though). It's both touching and somehow lame with how it pulled the cliffhanger. Zero's felt more complete and Sora's uhm ... more bitter-sweetish (due to EstellexJoshua?). Nontheless, I still plan to purchase Sen for my PS3 sometimes (should I actually find the time to play on it for a sufficent amount of time). I have also grown fond of the Hachiyou Ittouryuu battle style.