VMware has the massive advantage that all the money you're throwing at them gives you support. Yes, communities can and do offer similar if not better support than paid offerings but tell that to the people who decide what software you're buying :)

We have several big clusters built on mixed virtual and bare metal. I would prefer our system engineer to manually build on virtualbox before even touching hyper-v (which we clearly don't!). For some political reasons our IT forced us to test to build a solution on hyper-v (cost saving on some non critical infrastructure proposed by some very non-tecnical people), I still have nightmares. I am not even the person who had to do it in practice.

It is long to explain it here, just give it a try. Windows server and all releted solutions are simply bad for real workloads. Who use it on server is just a company who doesn't need to be productive on the IT side. Their core business is not tech related and they don't care other than getting cheap sys admins

Well, I mean, that. It's very capable but Microsoft gimps it by bundling it with windows server. The fact you have to use RDP to administer it is itself a non-starter.

You've not seen a wide variety of "shops" then, clearly.