So now both Ars Technica and C|Net have confirmed that the MacBook Pro (for whatever reason) is the fastest notebook while running Windows. Very funny and ironic at the same time. This is compared to Dell or Lovono with identical chipsets and configurations.
My question is, why would results vary so much? Some of these tests the MacBook was over 50% faster. That's a pretty big jump.
This is my theory (though I bet it's something more simple

For all those years Apple had to really refine their hardware to stay at least somewhat competitive with
all the PC companies becuase they couldn't rely on price. Now that Apple is using the same hardware as those PC guys, they can take all the tricks and techniques they learned from the PPC days in regards to refinement and performance, and apply it to Intel's chipsets.
Intel made their special Apple division working with Apple engineers and everything. I bet Apple had some really good technology ideas for Intel to use to boost performance, and Apple is the first company to get to use them (obviously becuase they designed them.) That's also assuming that Intel will get to implement these great ideas into their own generic motherboards for vendors.
That's partially how I think Apple is going to remain competitive with the other PC companies. Sure, identical chipsets, but their design and implementation is just as important.