Creative makes the best cards for gaming for the most part, that is what they are best known for.. I have had a handful of different Creative cards, and they do have issues from time to time, I have not had one with any of my cards.
Now I'm not in it for the gaming aspect, I literally want the sound quality, and EAX support for my games would be nice, but I could care less about EAX 3-4-5, EAX 2 is what i have now and its perfectly fine for me.
I don't know much about the issues with creative cards and vista, but I have heard about them, but not recently so I figure they fixed most of them...
It's not that they make "bad" cards, it that they are just kinda of a pain company to deal with, then some of us complain and throw a fit about the 200mb install for drivers and support software of course or as we call *bloatware*...