Obama has positions on issues.
I don't think he is as liberal as Clinton.
He certainly isn't as beholden to the traditional Clinton interest group machinery, NEA HATES Obama, unions tend to back Clinton or Edwards.
Yes Obama has positions on issue like, for instance, the war: he's firmly against having invaded Saddam's Iraq (an enemy) but has said we should invade Pakistan (a nominal ally armed with nuclear weapons). Any you really think this guy's positions are well-defined enough to hold the office of President? I'm a bit afraid that he'll go on a 12-day coke bender and hit the big red button on the desk.
As much as I despise Hillary she would be the least damaging to the country of the Democratic candidates. Richardson might be marginally better but he's not worth considering at this point.
Mike - A Republican wins the governorship of one of the most liberal states in the union and you don't think he can win the general election? Sure there are some bigots out there but who are they going to elect? Obama? Hillary? Not in this lifetime.