It seems like most of those ucla folks write on culture. It may be a stretch writing a statement aligning your interests, based off what you've described here. But if you really want to go to ucla, I suppose you could find a way to make it work.
Countryman also seems like a cultural guy, and I wouldn't rely on berry being around long enough for you to finish unless he gets tenure before you apply. Even if he does, I don't know if Michigan should be on your must-apply to list because of the interests.
If you like Sugrue at Penn, he's also a sociologist. Katz could work, but I've always thought he was a dinosaur. That may cause him to not be around long enough.. And he publishes every other day, so that could also be a problem for students.
Since you're looking for more suggestions, I say continue looking into the three guys at osu I mentioned and Alexander. Alexander's sister also teaches at osu in aaas, but may not be a match for you. I suggest looking into Singh at NYU.
You said the end goal is to be a professor. You may need to sit down and think about possible alternatives. To put this into perspective, my undergrad university had an opening tenure track position in 20th century us history last year. About two hundred people applied. Virginia and Berkeley, I was told, also had a similar opening. 300-500 applicants in their pools. You say you're not interested in sociology, yet your asking sociological questions. There are plenty of sociologists trained in history and using historical methods. In fact, the work I produce can fit into either discipline. Look into the new book Black Against Empire, a history of the panthers written by two guys at Berkeley. The lead author is a sociologist. Perhaps you should seek out advice from a sociologist at your current university or take a theory course. Not trying to be pessimistic at all nor am I trying to get you to change disciplines, just trying to help you keep your eyes open to other opportunities. We all want to be scholars, I would think--therefore we need to be ready for whatever comes our way if we want to make that happen.
Also, to correct someone from above. Angela Davis was NOT a panther. Also, Mike Davis is good as well