Rivalries is what makes sports so great. In the NHL, there's one Canadian rivalry that is one of the best. That is the Battle of Ontario between the Ottawa Senators and Toronto Maple Leafs.
History is on the Maple Leafs side in the rivalry with the Maple Leafs having won 13 Stanley Cups to the Senators' zero, and the Maple Leafs are 5-0 all-time against the Senators in playoff history with the most recent being last season's first round series.
The hatred for the Maple Leafs grows stronger with every game played for the Senators and their fans.