Chandelure. The way it moves is actually very enchanting, almost hypnotic even... Oh s**t...
I have claimed the Spell Tag and Kasib Berry, along with Adaptability and Shadow Ball. I have also claimed Gastly.
If you think Nintendo need to sue PETA up the ass for making Pokemon Black and Blue, copy and paste this into your sig.
Among legendaries (aside from ones already mentioned like Meloetta), Reshiram in particular has this elegant, beautiful flare to it (whereas Zekrom's more like "you only wish you were this awesome!"). Since someone mentioned Leafeon earlier, I feel the need to mention Glaceon too.
(If you don't like these choices, however, stare at Garbodor for 30 seconds. I am 100% sure it will make everything all better.)
I ran the now-defunct Claim-a-Move Thread. I also claimed Lightning Strike, Marshtomp, Motor Drive, Magic Guard, and Azure Flute (probably also expired, but who cares, as long as you know that I'm the ruler of everything).
In the 2012 era, I have unfairly won America*'s Warrior Cats Mafia (and a few ones before).
As expected, Meloetta, Gardevoir, Froslass (though I do hate her English name) are at the top of my List.
Articuno was always my original Favorite from Gen 1 because of it's elegance and beauty.
Raikou and Suicune had a sort of "intense and fierce" kind of beauty.
Entei can be added too though I find him Beautiful only when beside the other two.
And I have to mention Dragonair. Far more beautiful then it's evolution.
Frankly, I could go on and on about how many Pokemon I find Beautiful.
Elgyems. Such cute little aliens.
Relicanth. It looks so much like an ancient carving~ And any other "ugly" marine Pokémon, really.
Sorry OP, I go hard or go home.
Deerling [Specially Winter]
Sawsbuck [same as above]
Claims: Lapras, Waterfall, Chlorophyll, Moon Ball and Old Sea Map