None of them. Have you not been following the other thread headset types in GA?
http://www.pprune.org/dg-p-general-a...-types-ga.html
Can't go wrong with a pair of DC H10-13.4's
When I first started out, I used a pair of altronics C9073's. I put a set of DC gel ear seals on them and thought they were great... until they broke. Cable split apart, which I got fixed, but then the headband fell apart. Have used AVCOMMs on aircraft which I have hired, but they feel the same as tightening a G-clamp on the side of your head!
The lesson is, if your going to invest in a headset, which your going to use often, buy a pair of DC's as a minimum. If you want a spare set for the odd pax, then buy an el-cheapo set.
The DC's have copped an absolute hiding, and are still going, but considering a pair of bose now (thinking of the ear drums).