I'd go with the KOSS - it's got better build quality but fewer features.
If you want cheaper, I love Tek'N'Motion's cheapest headset - I can't tell a difference between them and low end Turtle Beaches. (The only cheap part in it is the volume transistor, which can be removed easily.)
Thanks! I was hoping that someone would say they were better. Like I said, I can't resist white. And I wasn't expecting the Rosewill's to be too good either, since they aren't primarily an audio company. Mostly cases, fans, and such.