Regarding Pokemon X and Pokemon Y's exclusive Pokemon, I'd been fairly comfortable with my choice of game for some time. Then Nintendo revealed Mega Charizard X. Seriously, this guy turns jet black and shoots blue flame; how could any reasonable Pokemon fan not prefer this newly revealed version? Sure, Mega Charizard Y is cool, but Mega Charizard X is like, Fonzi cool.
Yes, that means that Mega Charizard X will be exclusive to Pokemon X, along with his required-for-evolution item Charizardite X. The awesome doesn't just end with his visuals, though. Mega Charizard X, when he evolves from Charizard, will shift from Fire and Flying-type to Fire and Dragon-type, increasing its attack significantly and teaching the ability Tough Claws. He'll also learn Dragon Tail, which can force an opponent Pokemon to switch out.
Mega Charizard Y has his own talents, of course. When evolving, Charizard Y's Sp. Attack increases significantly and he learns Drought, which boosts Fire-type abilities. Mega Charizard Y can also learn Blast Burn, another high-damage Fire-type ability. Both of these abilities don't come in black and blue, however. Lame.
Pokemon X and Pokemon Y are planned for release on October 12 exclusively for the Nintendo 3DS. Mega Charizard X will join a quickly growing cast of characters alongside his brother Mega Charizard Y and many other Mega Pokemon. Ah, it's nice to have a Pokemon reveal that isn't just some nerd on the internet who doesn't know he's about to be sued to oblivion.