I was playing birth by sleep to get clips for a video project I'm working on and a thought occured to me when playing ventus's ending since the X-blade is forged of both ven and vanitas's hearts shouldn't they both be able to wield it or should it go to the dominant persona.

i say both cuz to get the X-blade,we need both keyblade warriors of light and darkness with EQUAL powers and clash to get the X-blade....

Well the whole thing about that was that Vanitas' will was stronger than Ventus' and took over. So he controlled the X-Blade,as he controlled Ventus. Ventus probably wouldn't have wanted it anyway.

Well, neither one should dominate the other because their power should be equal. I think Vanitas was still around because the fusion wasn't complete. But I think if the fusion was done correctly, neither should be able to wield it. Their heart would be a weapon and nothing more.

Well, the fusion would be completed, so they wouldn't be two seperate entities, they'd be one being. Unless they didn't chose to merge, then they would battle for control of the body, like Ven and Vanitas did.

I say neither, because someone more powerful/evil/whatever will just take it from them.

Whoever will is stronger probably.

There union was not perfect so Ven and Vanitas seperatley still existed.

They techinaclly were fighting for control

I think Ven can use the X-Blade but prefers not to since he was trying to destroy it after all.

(I like the responses keep em coming)

Both

I say both because the X-blade is connected to both of them.