I voted for Wisconsin, although they weren't even in our division the last few years. I think they are the most like us.
Minnesota: Close second, but they have been at the bottom of the Big 10 for too long.
Nebraska: Not yet, but maybe. We have to beat them first.
Iowa State: We are kidding ourselves if we don't call them a rival, and it's the team we talk about most on HN, but they are not a Big 10 team, and the bottom line is, Big 10 games mean more.
Illinois: This was my #1 hated team when I was a kid growing up in Eastern Iowa. However, we never play them, so they can't be a rival.
NW: There coach hates us, it was nice beating them, but certainly not a long standing rivalry game for the Hawks.