VM flavours - ESX, ESXi, VClient, VServer - or Hyper-V?
As the title might have suggested, I'm reasonably new to the world of virtualisation, but completely sold on the benefits and will be moving production servers to a flavour of virtualisation (to 2x servers, both quad core xeon 3ghz + 32GB RAM each!) very soon... but...
What is the best flavour of virtualisation?!
Hyper-V seems like a very logical and easier option for me - I have a strong background with MS and very little experience with the other options... but that doesn't mean I want to overlook them.
Hyper-V also makes sense from a cost perspective as it adds nicely to the Schools Agreement and gives us the full feature set of live migration and load balancing etc, which the other variations seem to charge additional for.
Those are strong positives for Hyper-V, but I'm also aware that a lot of people (especially on here) use other solutions. Can you give me some bullet points on why I might want to think again and not go down the Hyper-V route? (Obviously if Hyper-V does sound like a great scenario that's all good too!)