While Vista is supposed to be flashy and feature-heavy, whereas Leopard is supposed to be slimmed down and faster. I posted about that a long time ago.
Vista comes in different versions suiting the needs of the user, if you want a feature packed beast you got it. If you want a customized install, Install Home Basic and upgrade to Ultimate later.
Leapord is Mac trying to get some attention, Steve Jobs is a master of getting people hype with less than great features. It's sad when the highlight of WWDC is their Virtual Desktops and "Time Machine".
Hell, this is so bad it might make the programmers at Microsoft relax even more. I'm dissapointed in Leapord, I think SUSE 10 has a better chance against Vista. (Yes, I fell in love with SUSE 10 it's amazing)
Jesus christ.