General aviation aircraft in my experience are generally noisier than the flight deck of an airliner (not all, but most). In most cases the over the ear headset provides more passive noise reduction over say a plantronics or telex low profile headset. Having said this, I'm a huge proponent of the Clarity Aloft because it is as quiet as they advertise it to be. Another advantage of not wearing the headclamps is not having a sweltering ring of sweat around your ears during the summer months, or in tropical climates.