If it is a UW goalie vs a non-UW goalie, I'm rooting for the team playing the UW goalie. Yes, even if that means rooting for Canada to beat the US. If it is UW vs UW, or non- vs non- in goal, then it might come down to who has more Badgers who haven't won gold, or won any medal. Four of the five Canadians have won Olympic medals but only one has won gold (I think?). For the US, three of the five have won gold, but the other two have won no medals at all. So... Canada winning gold with the US silver gets the most Badgers something they've not had before? It gets very difficult to decide.
(And amazingly, I get the feeling from past experience that who I root for actually has no effect on the outcome! Hard to believe, but it seems to be true! No, I don't understand it, either...)