I have only seen 2 characters so far in FF13,, and I think they look totally cool.. Some say lightning is a femail version for cloud.
Is it really that hard to tell which section of the forum you're posting in?
Seeing as the battle system for this game has been described by SE as a more 'realistic' version of KH's, I don't think you'll be able to use all those swords unless in special circumstances, like how Sora could only use two Keyblades if he was in a certain form, the same system may be implimented with this game.