If you're okay with spending extra cash, I'd buy the Sennheisers. Either the PC 363D, or the G4me series (Zero has better noise isolation with closed cans, while One is open for acoustics).
The Corsair headphones have a smaller frequency range, and are wireless; which is nice, but battery life will always be dependant on playback volume and ambient conditions. Also, when the manufacturer says "up to 10 hours" for battery life, know that you'll probably get half that in real-world scenarios over the life of the headphones. The Sennheisers are wired, but you won't have to worry about charging up your headset after you're done gaming. As with all things battery powered, I'd expect it to last you a year, maybe two, before it needs constant charging to stay alive during long gameplay. Unless they are selling/plan on selling battery replacements, don't expect wireless headsets to last very long.
I hate cables, but there is no real replacement for cables when it comes to longevity of a product when the cables are not abused.