To single out Muhammad alone for being famous for spreading religion at the point of the sword is a bit one-sided, in my opinion. The history of the Christian religion (granted, it was a lot of people responsible, rather than just one, still... ) is just as bad, and if we are to believe the Old Testament, the Hebrew patriarchs are responsible for the first recorded total genocide of people of other religions/ethnic backgrounds. Granted, according to archaeologists, the Old Testament is largely fiction, but it's in the book and celebrated by many today.

I don't think it serves any purpose to single out the Quran as being any bloodier than the holy books of any of the other major religions.