Check out how 4800+ USCHO viewers answer this question:

Which underdog has the best chance to win their league championship to
guarantee a slot in the national tournament?
 44% Boston University
 20% Harvard
 13% Clarkson
 11% Massachusetts
 5% Alaska-Anchorage
 5% Northern Michigan
 2% I don't know / I'm not sure / No opinion.
Total votes: 4823