Do you even realise what a total douche you really are. Compared Ryu and Ken to X and Zero is like comparing apples to oranges. They're completely different characters with completely different friendships. :P
How am I being a douche? Your reason for Zero being in Infinite is ridiculous as there is no basis for it. If there was than there would be no reason to ever separate Ken and Ryu or any of the best friend dynamics present in their other games. I guess if Phoenix Wright makes it in again gotta have his best buddy Edgeworth along for the ride.