OBAMA
Black women and men
White men
Younger voters
Anti-war activists
Churchgoers
Educated
Wealthier
Liberals
CLINTON
Women (other than black)
Latinos
Older voters
Gays
Less educated
Union members
Poorer
Moderate Democrats
One point of this comparison is that it's easy to see why the Party is so divided, but these are artificial divisions that will be healed. The fact is, we are not divided because some people are pro-war and some are anti. We're divided over relative nuances, and even if the battle for the nomination is protracted, as long as the outcome appears reasonably fair and the candidates pledge unity, I think the Democratic Party will be fine.
Each candidate to a large degree will be beholden to his/her constituencies; in that way, those groups' interests will take precedence. Obama has pieced together an odd coalition, but it makes me think of the strange Republican coalition that includes ex-Marxist (neocons), capitalists, and religious fundamentalists. Let's face it, the traditional Democratic coalition hasn't been very effective in a long time, and the fact that Clinton is having great trouble even winning the Democratic nomination with that coalition attests to its weakness.
I got the info from various places, including this:
http://www.washingtonpost.com/wp-dyn/content/article/2008/02/02/AR2008020202572_pf.html Nonetheless, perhaps different polls show different things, so feel free to add or revise.