I don't normally get involved in politics, partly because of my profession and partly because I'm not really a political kind of guy. I think the real work and impact in life is done in the private sector, more than government. Having said that, I really, really hope Bill Richardson gets the Democratic nomination, and then I really, really hope he gets elected president (and I'm not a Democrat).
I'm under no illusion that any Republican candidate has a chance in 2008, and am completely underwhelmed by the quality and variety of candidates running for the GOP slot (Giuliani? Are you kidding?). The ostensible front runners on the Democrat side strike me as remarkably underskilled and under experienced. As far as I know, neither Clinton or Obama have ever really been in charge of anything. I'd like to have a president with a bit more experience than that. Look at Teddy Roosevelt (best president ever!) - he was police commissioner of NYC, governor of NY and undersecretary of the Navy, then VP before becoming president. That's the kind of person I'm looking for.
Richardson comes pretty close to TR's resume. He was governor of NM, UN ambassador, secretary of Energy... you get the picture. I also like Richardson's track record, his attitude and sense of humility. I like his position on many things, in particular his position on Energy (he was Secretary of Energy for goodness sake).
I won't try to summarize him on the issues - you can check them out online and decide for yourself.