System Shootouts has pit a Mac Pro against a Dell Precision 690 workstation in an in-depth feature-for-feature comparison to see who gets to go home with the prom queen. This match is of particular interest in part because of how detailed the feature criteria is (it included extra drive/bays like a floppy or memory card readers, as well as any included backup solutions and even web authoring software), but also because of how ultimately mismatched these two machines are. One machine is so overpriced that System Shootouts opted to break traditional policy and include a display and/or extended warranty program in the name of mercy for the losing contender.
In case you can't tell, I'm trying not to spoil this particular match because I think it's such an interesting upset, especially in light of how Apple did their own hardware match-up on stage at WWDC 2006. Check out the shootout for yourself to see whether the Mac Pro or the Dell wound up spending prom night home alone.