I am a huge fan of the Iron Kingdoms and currently use Pathfinder in all my games.
For most of my recent Tabletop career I have been designing robot PCs (for three different campaigns now).
My DM style is to evoke strategic combat situations as well as implementing survival elements into my game. I reward creative and thoughtful roleplaying as well as contributions like art and back stories. My balance is about 60% combat and exploration and 40% roleplaying in and out of combat.
I am Currently trying to experiment with Gamma World as an alternative to Steampunk as my backup game system.