Uh, so back on subject... I never liked Heatran, Cresselia, Regice, Uxie, Keldeo, Latias, and Shaymin (though Sky form looks pretty good).
My favorite Legendaries are Mewtwo, Dialga, Zekrom, Rayquaza, Darkrai, Zapdos, Raikou, Suicune, Registeel, and Cobalion.
But to put my 2 cents in what everyone has been talking about. They haven't released many Pokemon for X and Y yet. most are pre-evolved states. I would say most pre-evolved Pokemon are kiddy, not cool designs. I mean I love Charizard, but Charmander is just a lizard so it's nothing to brag about. One of the go to insults for B/W is 'they have a Pokemon made of trash! WTF?!' but didn't 1st Gen have a Pokemon made of sh*t? There is a ton of sh*t Pokemon, all gens included. I could go on to say just how many are sh*t but everyone has their own opinion on what they like (did I read right that someone has a problem with my INFERNAPE?!?!?! OH NO YOU DIDN'T!). I'm excited to see how the evolved form of a lot of these Pokemon from X/Y will look. Pancham already looks cool, Litleo has a weird Fire/Normal type but lion Pokemon will probably be badass fully evolved (for example Shinx isn't great but Luxray is badass), Honedge has a cool design IMO (but how the **** is a Ghost also Steel? It's solid yet not?). Also, I usually hate the way starters look pre-evolved, but these don't look that bad (not sure about Froakie yet though). The only starters whose pre-evolved state I
really liked were Totodile & Chimchar.
I don't think this is official, but these look badass lol.