Even though my personal tastes lay with the NT 4.0 model its plain to see XP was superior.
Why, because it takes 3x more resources to run the same stupid applications you were running on NT 4.0?
J'ever load XP on a P200 with 32meg of RAM and make an office print/file/BDC server out of it like you could NT 4.0? No? But of course XP is superior because it plays games better.
Might be why a LOT of our office jobs are going to Indiana. Fatter OS's, but less efficient people.
From a productivity standpoint I don't see much difference between NT, Win2000 and XP, and fail to see Vista thrilling anybody except multimedia home users. Win95/98 were essentially a bridge from DOS/Win3.1 to Windows NT4/2000/XP, but I still fail to see what Vista is delivering other than a promised round of hardware upgrades to keep cash flow in the computer harware sector.