I enjoyed Janssen's Camille Desmoulins: Le Premier Republicain de France, which is *much* more thorough than Jules Claretie or Violet Methley (the latter is probably my least favorite Camille biographer--the "weathercock" metaphor? Err) and less romantic, yet still very fluid and readable.

The Twelve Who Ruled is great as well. Lefebvre's Coming of the French Revolution was a very influential read for me back in college, so I'd name him as a favorite.