I absolutely love my GY Duratracs. They are the perfect blend of all terrain, mud, snow tire. They also have the aggressive look of a mud tire without the sacrifices a mud tire makes (load noise, bad road handling, ice and snow sucks unless super deep). They are certainly a louder tire but nothing like a mud tire and my exhaust is louder than the tires anyway.
If you wanted something less aggressive and more toward a road tire but still good off road and in snow...the BFG's AT KO2's fit that bill amazingly as well, but its deep snow and mud performance sucks.