Pokemon mega-evolutions

So most Pokemon fans must know by now about the mega-evolutions introduced in Pokemon X and Y, Nintendo did early release Mega Mewtwo but most fans took it as a normal evolutionary stage which was a surprise when the mega-evolution method was released August's issue of CoroCoro.

Mega-Evolutions unlike the evolutionary methods know to this point is very different. Much like Digimon this form of evolution is temporary and requires a form of mega stone for different Pokemon in which they hold, the effects wear off after the battle (So kinda like Red using the fire, water, and thunder stones in the manga with Eevee). So far there are seven release mega-evolutions:

MegaMewtwo       MegaBlaziken         MegaLucario             MegaMawile        MegaAbsol
Type: Psychic        Type:Fire/Fighting  Type:Fighting/Steel   Type:Steel/Fairy   Type:Dark

MegaAmpharos            MegaKangaskhan
Type:Electric/Dragon   Type:???

Mega-evolutions have extremely increased powers and gain new abilities and in some of these Pokemons' cases, change or earn another type to them. MegaKangaskhan is the most interesting out of these as the baby in it's pouch jumps out giving it a unique ability to make any attack used affect twice. Considering the new EV training systems has come up this Pokemon is a clear must have for competitive fighting in which anyone will now be able to do.

 So what do you think of this new type evolution? Which of these Pokemon mega forms do you like most, and what Pokemon do you want to have a mega form? Personally I'd like to see one of Dragonite, as they have a new found weakness to fairy types.

Finally what is it you are looking forwards to most for Pokemon X and Y?