This past weekend was not kind to the nation’s best. The top four teams in the USCHO.com D-1 men’s poll all suffered losses, and among those a 21-game unbeaten streak was snapped. Quinnipiac, Minnesota, Miami, and Boston College are the hunted at the top of the NCAA’s food chain, but sometimes the hunters catch up to them. The No. 2 and No. 3 teams in the NCAA fell on the same ice this Sunday as a part of the four-team Hockey City Classic at Soldier Field in Chicago, Ill. No. 3 Miami took on CCHA rival No. 11 Notre Dame …