I'm setting up a new server to host GW8. We're running the latest HP of 7.0.3 on OES2 right now - the existing server does more than just GW (and will remain after GW is moved) but the new server will be GW only. Is there any advantage in OES2? The new server will be an ESX VM and it won't need to be clustered.

I'd be glad to hear your opinions but I'm more interested in technical issues :)