Two things happened to make that better. First off, creative started sponsoring OpenAL. Most of the crashes I had on creative cards were because of lousy OpenAL support. Once they bought into openAL, that went away.
Second, windows 7 now does all the sound mixing in software. That means the x-fi chip is largely unused, hence nothing to crash. The only things that really matter in sound these days are signal to noise ratio, and having the right type of connections.
Creative's new recon series is designed for windows 7. It removes most of the unused x-fi features. However they stink because they don't do 7.1 and they integrated the DAC onto the chip, leading to more interference and a lower signal to noise ratio.
X-fi's are good but not great at signal to noise (109db vs 116db for asus), but they have the most output options of any card. That said, a good way to crash a creative card is to use the analog outputs and the optical outputs at the same time. When I do this I lose sound about once a month, and have to reinstall the driver to get it back (much harder to figure out than to do.)
Asus also has problems, I've heard reports that if you reformat a machine with a xonar card installed, it can kill the card, and you need to RMA it. And the HDMI sound output from my nvidia card also has issues with sli. So pick your poison.
gbmike :
I used to love the creative sound blaster line, but in my opinion creative sound cards have gone to crap. I have older cards that still work fine, but I tried getting a card for my current comp and creative cards were giving me nothing but problems. Games freezing up due to a sound card? You kidding me? In any case, sorry I couldn't be more help but if you would like to avoid a headache stay away from Creative.
In fairness, I did recently buy some creative headphones and they are nice