For me, the best part of any new main series Pokemon game is discovering all the new Pokemon. Or even new evolutions for old Pokemon. Of course, Pokemon X and Y have been no exception. Not only do we get brand new Pokemon, but we have Mega Evolutions of older Pokemon to discover.
I've been playing Pokemon X for a couple weeks now and have found loads of new Pokemon on my adventure. Here are my favourites
The Ghost/Grass type pumpkin Pokémon Pumpkaboo, can come in different sizes. Small, normal, large, and super size. It's not evidently clear which size it is until you catch it or if it's next to a Pumpkaboo of a different size. At first I thought it was just a cosmetic difference like the Pokemon Spinda, but Pumpkaboo's size can also effect its base stats. The bigger it is, the more likely it is to have higher stats. Pumpkaboo's form can not be changed, it stays the size it was when you first encountered it.
On the surface Furfrou looks like your standard boring normal type Pokemon with nothing special going on. But you can give this Poodle Pokemon a haircut and there's even a special Furfrou salon in Lumiose City. There are nine different styles you can choose from but after five days it will revert back to it's natural form. The forms have no effect on battles.
Kangaskhan is one of my favourite Pokemon from the original games. When the clip of Mega Kangaskhan was shown at the Pokemon World Championships a couple months ago I was really surprised. I had always wondered when the little baby Kangaskhan would make an appearance as a pre-evolution, let alone jump out and fight along side its parent. Even though it looks slightly more 'evolved' than when it's in the pouch, I still think it looks super cute! I've not got a Kangaskhan in my team yet but I am really looking forward to using this Mega Evolution.