[909linux] best distro for VMware?

[Roger Rustad]

I've been running VMware under Windows, Ubuntu, or Mac, but I'm now to 
the point where I need to build a rack a server that supports quite a 
few VM machines simultaneously.

Anyone have any advice on the best Linux distro to use as the host?  All 
I want it to do is run VMware (and maybe Xen and/or OpenVZ) extremely 
*fast* and efficiently -- nothing more, nothing less.