i think it would, that's a really good question
Although Ven had trained along with Terra and Aqua, he had never actually taken the Mark of Mastery Exam. For those of you who do not know, the Mark of Mastery Exam was the official, and final test, where Keyblade wielders would fight, while being judged by their Masters. Only Keyblade masters or another person of great power, could choose new Keyblade masters.
The Keyblade chose Sora because he has a strong heart and would do anything for his friends.
Someone with a pure heart. It would have to be a being of pure light, pure good, to weild a weapon as awsome as the Keyblade.
That would be Master Xehanort, a master of the keyblade who goes missing with his partner, Vanitas.
Because his heart is strong and pure!^_^The keyblade originally chose Riku and Sora was supposed deliver it to him, but Riku's weak heart gave into darkness, so the keyblade chose Sora as its master.
Well, if you were to decide the best keyblade by stats, then that would probably have to be the ultimate keyblade, which is the very last keyblade you can obtain and must be synthesized with the moogles. But if you were to decide the best keyblade by its special power, then that would be up to you, as to whether you like lucky or more mp or more defense.
Roxas would dual-wield the Oblivion and the Oathkeeper, usable in Another side, in Another Story, or when you battle Axle.
You would have to buy one.
It would be Keyblade Wars. Birth By Sleep is a side story the way 358/2 Days was.
Beginning... A long time ago, there was a keyblade war between the forces of light and dark. It was believed that the war was fight in order to create the X-Blade, a weapon only created when a force of darkness crosses an equal force of light. Later... Master Xehanort, a keyblade Master, apprenticed a young keyblade wielder named Ventus (Ven). Master Xehanort had an ambition to control the powers of Darkness and thought that, upon obtaining the X-Blade, he could do so. Master Xehanort thought that Ventus, because he was a being of light, would be able to (involuntarily) assist him with achieving his plan. Eventually, Master Xehanort extracted a dark enitity from Ventus, which was named Vanitus, in hopes that the two of them could "create" the X-Blade. Unfortunately, Ventus's memories were erased, so Master Xehanort "dropped him off" with Master Eraqus, the keyblade master who teaches both Terra and Aqua.
Xion is a puppet created to team up with roxas so the keyblade's power would rub off on her and then she would get a keyblade... in the long run, to finish kingdom hearts faster...
I would recommend Ultima