Most of the people, like myself, that hate Vista are gamers. The standard version (x64) does not run old games such as Red Alert 2, and it does not run any software with a 16-bit installer. It has issues with 32-bit software as well. Finally, the system requirements for new games are higher (usually twice as much for the video card) on Vista then on XP. Every gamer I know agrees with me on this.
The only one I couldnt run so far was diablo 2. I went with lower resolution (800x600) and it works great now.