The good folks at Bare Feats love them some benchmarking, so I am surprised it took them so long to compare the performance of Windows XP versus OS X on a MacBook Pro. They took a look at how applications that are available on both OSs (and are Universal) ran on the MacBook Pro.
The results? XP wins when running games (for the most part) while everything else goes to OS X. They did compare some apps running in Rosetta to the same apps running natively on XP, and XP blew OS X out of the water, as shown by the graph above (of course OS X running on a PowerPC would also blow Rosetta out of the water).
[via Paul Thurrot's Internet Nexus]