some of the surround sound headsets really do have multiple drivers in them, though it is nowhere near as good as a real surround sound system in a room.
stereo options are your best bet if you want audio quality. if you pay $100 for a ss model and $100 for a st model guess which is going to have better drivers?
if you arent opposed to a seperate mic (they make clip on mics) a far better sounding product would be to get a good analog studio headphone set. much better sound accuracy for both games and music. sure you lose the mic but that is a small matter if you consider the sound differences.
i use a audio technica ath-m50s that i got for $180, i've seen them as low as $90. another notable brand is sennheiser. i wear mine at work all the time.