McLaren
For me its the engineering that makes F1, so my loyalties are with teams. I think the credit has to go to more than just the drivers, with so much coming down to set up, strategy and of course the design of the cars themselves. I hope one day that's what I'll be doing.
Incidently McLaren weren't doing too well when I first got into F1 and not knowing the history at the time, I had actually gone for the underdogs - contrary to accusations of glory hunting by tifosi 'friends'.
My favourite driver at the moment is Button and I look forward to hopefully seeing him develop as a driver over the next few years. I'm happier seeing McLaren winning though and i'm sure they'll be fighting back next season.