[boost] [git] Mercurial?

Git has a competitor called Mercurial? If we're moving to a Distributed-VCS, should we go to Mercurial instead of Git? They're kind-of like CVS vs. Subversion, except I think they came up in parallel. (While Subversion was designed as an updated CVS.) I think Git was made up of a bunch of script hacks, while Mercurial was a regimented single program. I don't have a preference, but I want to make sure we consider the rival options. Daryle W.