if we have heard of them then they probably aren't the most underrated. theres random dudes who absolutely rip at places like jackson and snowbird and whistler and even breck who never film.
as far as people you have heard of, there are a ton who don't get the respect they deserve, but i don't understand how moxham isn't a bigger deal. the guy shreds hard everywhere
Moxham Bros Edit 2013 from Ben Moxham on Vimeo.