Well to be technical I have all of the above. I only use XP home and Vista Ultimate though.
And to cabbspapp there will always be haters out there. People afraid of change or just jumping on the rumor mill. People that don't understand how or what drivers are buy Vista then have massive problems because there not running the right setup and say its crap and it crashes. Other people hear that don't realize that person probally just has no clue what there doing and repeats what they heard. I have yet heard a person complain about Vista that had it installed correctly.