So then why are you hijacking?
Vista is not really bad at all IMO. It's probably the most criticized product in history, but most of the criticism was unfair.
Lots of people hate having to learn a new interface, so they hate Vista simply because a bunch of things are now done differently. Personally I felt very frustrated at first, going from experienced XP user to clumsy Vista user who didn't even know how to set a screensaver. That will pass, as people learn. Still, Microsoft designers should be kicked for making so many unnecessary changes.
Then there's a lot of idiots who say they hate Vista but in fact they just hate Microsoft, and some haven't even seen Vista themselves. Google "Mojave experiment" to see how those people were exposed. Lots of Linux and Mac fans were very happy to spread garbage about Vista, of course, because it made their preferred choice look smarter by comparison.
There's also the fact that, during Vista's first year, games were crashing a lot. Documents filed in court after the "Vista Capable" fiasco showed that in fact 28% of those crashes were caused by crappy nVidia drivers, 17% by (almost as) crappy ATI drivers, 9% by Intel drivers (related to P35 chipsets and various devices), etc. Those things have been fixed by now. For example my nVidia 8800GTX card is very stable now, but it was causing blue screens all the time with earlier drivers.
Backward compatibility for older apps and hardware also was bad. This is really the responsibility of the software/hardware manufacturer's, not Microsoft's, but Microsoft got the criticism because less technical people didn't realize that. This has been somewhat fixed by now, as manufacturers have released new versions of software and new drivers.
Anyway, the jump from XP 32 to Vista 64 will bring you 3 major advantages:
1. DirectX 10 - some games will look better
2. full use of 4GB or more of RAM. With XP 32 you're lucky if you get 3.5 GB. Personally I get 3.25 when I boot XP (0.75 is hidden by the RAM on my 8800GTX)
3. Your resume can now say Vista too. Employers do want people who can find their way in recent software, even if they don't even have Vista yet.
Plus of course whatever advantages Vista actually adds - see Microsoft brochures for that