I've used Sandstorm teams (TTar, Exca, Ferro, Quag, Chomp, Terra), and I'm learning about Sun and Rain teams. Other than that I use Mixed Hyper Offense or the occasional Stall.

My style is using a strong defensive core, and i use priority moves a lot. i love to take advantage of switching by putting sub on my priority abusers to put my opponent in a tough spot. In short i put pressure on my opponent and limit their possible options.

My style is basically having one or two defensive Pokemon, while the rest are independent set-up sweepers, meaning that the only support they need is Stealth Rock, after they set up, the opponent either gets swept or manages to wall my sweepers.

I've also experimented with Volt-Turn, Sandstorm, and HO in Dream World OU. (If Dragonite/Chandelure/Haxorus/Latios/Starmie/Ditto isn't HO, I want to know what is.)

I prefer hyperoffensive Pokemon on my teams.

I'm a fan of playing mind games with my opponent, so I use lots of switching, stalling, and using Imposter :D