A friendly powerful distributed version control system
Ranked in these QuestionsQuestion Ranking
It is quick to learn, you don't need to memorize lot of commands to do your job.
Pro Tracking empty folders
With Bazaar you can track empty folders without the need to put .keep files in them.
Pro Full support for renaming
Renaming of a file is fully supported, not a hack like removing a file and adding back under another name...
Con Slow developement
Bazaar tends to have a slow update cycle with Canonical. Version 2.6 was released in August 2013 and branch 2.7 was not finished until Feb. 2016.