All of them fake though. The brotherhood doesn't have a hanging part on both sides, the Cloud blade he shows has a "fake" writen on it...
Well, Gilgamesh always had an affinity for fake swords. Remember "excalipoor"?
yeah, i thought it was a cool throwback when i read what the sign meant on the buster sword.
I thought the one w/ the sun on it was the Sun Blade, which was the most powerful weapon in FFI, but I think it's called something else that you can actually get.