Vista X64 vs. XP X64 vs. Windows 7 32bit (Score 1)

I am running Vista x64 SP1 and Windows 7 build 7000 on the same machine and I had XP x64 SP1 installed a few months ago also and I can say without a doubt that Windows 7 is one of the best OS that I have ever used, it literally flies through all tasks without any lag whatsoever and I have tested it running multiple tasks, I had dozens of windows open from multiple apps running at the same time with dozens of processes and still experienced no lag time and I run some pretty heavy apps, currently at idle windows 7 Utilizes over 4 times less CPU and RAM. The average startup time is 3-4 time faster than vista and 2-3 time faster than XP. I am looking forward to the final release which is usually faster than the beta, and if Beta 1 is any indication of speed and stability then all the other OS on the market are royally screwed.