Here's something interesting.
All of you guys that are saying it's faster than Win 7 are running Intel-based platforms, mostly I7, with quite a bit of RAM. Are you running 64 or 32-bit?
I only had a copy of 32-bit Windows 7 Enterprise to test with so I was running 32-bit Windows 8 consumer preview on an AMD Athlon dualcore platform with only 4GB of RAM.
Windows 7 was definitely faster by a small margin.