I've been lurking since you posted this since I was curious what people would say, but since nobody's responded I'll toss in that I absolutely love my Sennheiser PC 360 headset. It has been replaced by the G4ME ONE (http://en-us.sennheiser.com/gaming-headset-game-one). It just plugs into regular 3.5mm audio jacks, so when it comes to SS emulation you're stuck with whatever your motherboard's audio drivers offer, so perhaps it's not the right choice for you, though.
I wear this headset about 10 hours a day in hot or cold, and rarely do I feel the need to take them off to rest my head or ears. It's supremely comfortable, and the open aural design means your ears can breathe, and you aren't totally isolated from sounds in your...