Comparitively speaking the NFL is a lot more physical than the NHL.The NFL has better,more modern,practical protective equipment and much lower incidents of concussions.The NHL like NBA has a much more arbitrary officiating groups(Tim Donaghay come to mind) with less attention paid to mistakes(Leon Stickel). The NFL has cameras very stragegically placed,so that if a bad call is made,the whole world knows about it,a review system,plenty of officials on the field,etc.What happened to Sid Crosby, Lindros,etc,never would have happened If the NHL was a responsible,professional organization,instead of the "sh!t House Rats" that are currently at the wheel! Try the 21st century,you'll like it!!!!!!!