If you are looking for a headset for both GA and Commercial planes I would strongly recommend the Sennhesier Models in particular the HMEC25KA.
I use that on the A320 and what a difference it makes with the ANR. Comfy and lightweight too. Expensive but some make their way onto EBay and go fairly cheap. !
Regards
http://www.sennheiser.co.uk/products.jsp?id=04317