I still have all 3 OS’s XP ProSP3 32bit, Vista Ultimate SP2 64bit, Windows 7 Ultimate 64bit.
XP is an ok OS but it is old and tired just like me, LOL
Vista is a pretty good OS and I have never experienced all the troubles others have reported
about Vista it has always been a rock solid OS for me but I did wait until SP1 was out before
I installed and started using it.
Windows 7 is better than XP and Vista combined together but IMO it was more or less just a
major SP release for Vista that costs you money instead of a completely new redesigned OS.