I played a Gyarados, Mothim, and Unown P deck in round 3. I think people were calling it Moth Balls. I played against Banette Electrode in round 6 or 7 I think. Both of those decks were pretty awesome. Other than those two I played against G&G twice, Empoleon three times, and Leafeon twice.
I heard about a deck called Spread The Damage; I believe it used Absol EX, Zapdos, and Bronzong? I don't know what its final standings were, but people were talking about it being 5-0 at one point during the day.
A very wicked Absol Gallade list out of Colorado made it to top 16 and top 32.
And of course Torterra got third place! <3