The poll has been closed. After over 100 votes, Git has emerged as the winner, although not resoundingly so. The only notable "other" was ClearCase with about 6% of the vote. The final results table is below.
Thanks to all those who took part! Maybe I should take another poll: who has the best logo, Eclipse or Git?
Edit: See the previous post to find out why Subversion is not included in the results.