Ask twelve pilots about headsets and you'll probably get thirteen different answers. The big debate is between 'normal' and noise-cancelling types with the protagonists for each side holding forthright views. The main thing to look for is comfort, so best to go to a Transair shop or similar establishment and try on a selection. We've all got different head shapes so there is no 'one fits all' solution.
For what it's worth, I use the no-frills, standard Dave Clark 13.4 which I find comfortable, robust and compatible with most other makes. One of my students showed me his top of the range Bose recently. It's very good but not worth the extra £400 in my opinion.