Diesels are great for plowing I've used Fords, Chevys, GMC and will soon use the Cummins. The extra weight can be an advantage when pushing the heavy wet eastern snow. The biggest drawback is you loose airflow to the intercooler but as long as your not drag racing with the plow on it is no big deal.
Strongly advise a "Snow Foil" or rubber flap at the top of the plow, this prevents excess snow from coming over the plow and blocking the air to the intercooler/radiator.