I'd buy ORAS, since you have some stuff you don't usually have. X and Y are cool for normal plays but you can trade anyway with the Pokemon you want in the Wifi forum here on smogon, so being able to get the mons is not that special. That said, this would probably have been best in any SQSA thread, so it might be better to delete the thread now, since it'll probably either get locked or deleted by a moderator.