Version Exclusives

VS

Still having difficulty deciding which version to get? Then here is your place to make your decision. The main thing you want to look at is probably your main legendary Pokemon, Xerneas or Yvetal. The second thing you should pay attention is the Mega Stones. These things can't be easily get, but the other pokemons can be easily trade from the GTS! So make your decision clear here!

Old Pokemon for X

Aggron evolution line

Armarldo evolution line

Cradily evolution line

Houndoom evolution line

Mightyena evolution line

Pinsir

Sawk

Starmie evolution line

New Pokemon for X

Clawitzer evolution line

Slurpuff evolution line

Xerneas

Mega Stone For X

Charizard X

Manetric

Mewtwo X

Pinsir

Tyranitar

Old Pokemon for Y

Cloyster evolution line

Heracross 

Kabutops evolution line

Liepard evolution line

Manetric evolution line

Omastar evolution 

Throh

Tyranitar evolution line

New Pokemon for Y

Aromatisse evolution line

Dragalge evolution line

Yveltal

Mega Stone for Y

Aggron

Charizard Y

Heracross

Houndoom

Mewtwo Y

If you notice, Houndoom and Aggron can be found in Pokemon X while Manetric and Tyranitar can only be found on Pokemon Y. However, their mega stone is only given in the other version. To make it simple, you can have Houndoom and Aggron but you can't mega evolve without getting the stone from Y. Same goes to Tyranitar and Manetric in Y version too. Well, nothing to be sad though. You still can trade the Pokemon you want from GTS or maybe from your friends who are playing different version with you. Or maybe just get both games? Lol.