Best Operating System ever produced

MMh...it is difficult because different os normally starts from a different concept so sometimes it is difficult to compare them in this way...also because if we consider all os which they will follow an open source philosophy as linux are quite different to compare to that one follow a propietery policy as microsoft or apple too!! So as regards apple and microsoft i will prefer microsoft but probably i think if we see for the future in the os the linux ones will be the future..no costs,really stabel and also the graphics and functionalities are really improved!!

Win XP SP 2 because is easy to work whit and it has a good fire wall.Whit it i haven't take viruses like i have with xp normal even if i had the same bitdefender. Vista i haven't tried but i know it has problems whit drivers and need more ram than xp

windows vista is the best os i think so may be i never used it before

If is produced by Microsoft I'll choose Windows XP professional - It moves fast and I like his peroperties of plug and play..:) But if is produced by other.. I'll choose Red Hat.. because is stable and easy to use (for me) :) Happy New Year!