Performant 3d acceleration in the guest OS is still quite difficult to find an open source solution for, and linux these days relies heavily on this for window management. Mac hosts at least have ParavirtualizedGraphics, even though I don't think the popular open source clients have support for it yet.
What open source options would you recommend for running Linux and Windows VM's on Windows? I've been unhappy with Virtualbox because the audio quality is abysmal which is an issue since I use screen reading software. I'm interested to try out VMWare Workstation since it's audio support was pretty good many years ago when I used it at a prior job.
Hyper-V? I don't run VM's on windows, only on Mac and Linux. I'd imagine a first class hypervisor like Hyper-V is the way to go on that platform. AFAIK it is included with Pro versions of Windows.
