Ranked in these QuestionsQuestion Ranking
Pro Highly customisable
Jenkins is by far the most customizable solution on the market. And CloudBees is built on Jenkins. There are over 400 plugins to support building and testing virtually any project.
Pro Private and internal SVN and Git repositories
Support for both SVN and Git private repositories.
Pro Free for open source projects
CloudBees offers a solution for owners and developers of free and open source projects to be hosted and built by their service.
Con Java-only solution (without plugins)
Jenkins supports only software built with Java (unless you use plugins)