I prefer the TB's. I tried the PX3 and it was causing a problem. I looked into it and I guess because of my router running on the same frequency, it was causing some kind of chat problem. It's too bad because they were nice. It tried the Tritton's and sisn't like the fact I couldn't hear myself talk during chat. According to my wife, "My God........you're damn loud", when I was wearing those. They were comfortable though. I have DPX21's and X11's for the record. I really like the DSS and it works with both.
Astro A40's > Any other headset..
Tritton's are made terribly. I had AXPros and they broke in a week justifying me to buy the A40s which are better built then any other single headset. Turtle beachs are of a little better quality but not much.
I'm the type of person that will spend an extra 100 or 200 to get a good quality product that I will not have to replace, those being the A40's. I know a lot of people with the X12s who replace them every three months which is stupid and not economical at all.
FYI Turtle Beach is releasing a new lineup of dual-band wi-fi based headsets soon: