VMware Workstation 9 It's difficult to go wrong with VMware Workstation. I tested Workstation and VirtualBox on an Intel Core i7-3770K CPU with 16GB of RAM, 128GB of SSD system-volume storage, and 2TB of additional hard disk space.
Whereas VirtualBox supports Mac OS X hosts and guests as well, VMware offers a separate product, VMware Fusion, for the Mac. Both products run on Windows or Linux hosts, and both support a broad range of Windows, Linux, and Unix guests.