Hmm, that's a good question, and honestly I've never given it much thought, but I do agree that it would probably be a Steel-type. Actually, now that you mention it, my whole team probably wouldn't be a far cry away from Colress', since he uses several of my favorite Steel-types. However, if I had to pick one main Pokémon, then I suppose I would choose... either Klinklang, Escavalier, or Metagross (preferably a Shiny one, since I love Metagross' Shiny coloration, but if not, I can deal). Though now you've gotten me curious; what about you?
Also, I appreciate the compliment. ^_^