IMHO, a good headset (2 channel) is way better than the silly gimmicky 5.1 headsets like the Medusa's, so first up, go 2 channel Stereo.
If you remember i bought some PC350's not so long ago.
https://www.pcreview.co.uk/forums/thread-3620033.php
Well they developed a rattle on one of the cones...
So after some thinking i decided to return them for a refund and keep my old
PC151's. Why? Because of many reasons tbh, the 350's were hot after a while as they completly covered my ears, the mic was way too sensitive, no matter what settings in TS i did to change it, and many other reasons too. It was more of a personal preferance thing tbh. The Music quality was great, but the Gaming quality jsut didn't seem quite as good as the 151's...
Maybe i just had a duff pair i dont know, but they went back anyway and OcUK refunded me without an issue.
So anyway, yeah, if i were you i'd have the 151's, good balance between price and performance, and a mic if you ever need one. (Teamspeak, Ventrilo, Skype etc.)