In a straight up VirtualBox vs Hyper-V scenario the I/O performance on Hyper-V is a lot better, and that's not based on contrived benchmarks either. I've used

In a straight up VirtualBox vs Hyper-V scenario the I/O performance on Hyper-V is a lot better, and that's not based on contrived benchmarks either. I've used both for full time development. It only took about a day of using VirtualBox with sync'd folders to look for alternative solutions due to how bad it was about 4 years ago (not sure about today). Also, VMWare Player is / was so much faster than VirtualBox, and is on par with Hyper-V's performance. Currently I use Hyper-V today because it's the back-end for Docker for Windows. I couldn't be happier with the performance.