Hey how do I upgrade from windows vista/7 to?

That would not be an upgrade. It would be really really retro! Also XP would be retro not an upgrade. 98 is stable but only in the hands of a power user, it is no longer supported. 2000 is OK ME is bad news. 95 is OK but crippled and no longer supported. MAC's are great if you are into publishing. Greatest OS of all time? Have not seen one but I like the linux variants.