I am setting up an OS X (build and) test environment for a open source project with a big C codebase. It shall be a Mavericks host on a Mac mini, which has a virtual machine with Snow Leopard. Both machines are designated to act as Jenkins build slaves. Nothing else is meant to happen there.
I'm not sure which hypervisor to chose: VMWare, VirtualBox, Parallels, any other? It shall be both powerful enough to do the jobs in short times, but also affordable. What are your experiences and recommendations?
Thank you in advance.