My PC has XP Pro x64 on one partition/HDD & Windows 7 Ultimate x64 on the other. I prefer XP.
_Vista_ was tried it - and denied it! Hated it that OS. NTFS is 'ok', FAT32 is more tweak-able (LOVELY!!

), but Vista was complete [un-censored] crepe anyway.
The MacBook Pro gets PLENTY of my attention. There is
not a lot of (

guffaw

) virus thingys... er, threat warnings. Oh happy days.

I may venture near Windows 8 but I DO prefer to W8. HAH! See what I did there?!?
Was only coming on here today to post about
Diskeeper 12 Professional Upgrade - I now have so, job done!