We use both. Yes, I think VMware is a superior product to Hyper-V.
Don't get me wrong, it's a million miles better than Virtual PC and I'm sure the next gen virtualisation from Microsoft will close the gap completely but for now it's not quite there.
I don't think you've seen Hyper-V/System Center demonstrated properly. VMware is great but just like Hyper-V/System Center it requires knowledge to configure it properly.