I would go for the Gamescom, I personally have one.
It looks kinda 'cheap' and isn't really that pricey.
BUT, the sound is just magnificent!
For it's price and sound quality, I would really go for the Gamescom.
I compared it with a tritton Warhead and I have to say that the Gamescom is the way to go!
+ There is one thing I didn't like, it's the USB.