Your Favorite Windows Operating System

well, it really depends if you talking about for its day, or if having like all the operating systems nowadays, in its day, windows XP was amazing imo.. but comparing with windows 7, of corse, windows 7 gets my vote, but if we are talking about improvements compared to previous models, id have to go XP

PS: I voted win 7
PPS: Linux is way better then all of the options though!