>>27561833Whats important to you anon?
XY has new pokemon, character customisation and you'll see your in game friends a bit more often. Its weaker storywise, though neither is anything to write home about, and the game in general has less difficulty.
ORAS has some fun features like Dexnav and a slightly higher difficulty curve (though not by much, but definitely a better Elite 4 and champ), more megas to choose from, and a better enemy team.
Neither has a massive post game, each has a short extra storyline which isn't bad but again, nothing special either as well as the Battle Maison which is pretty bland.
Personally I had more fun with ORAS, but I still enjoyed XY, just not as much as I enjoy most pokemon games.