Wisconsin +4.
KenPom says they win outright by 1, and I don't think that accounts for Fat Melo being out. I'm not a fan of playing sides, but 'tis the season.
Beware
kenpom's Wisconsin problem
I've thought about this quite a bit, and I've always realized that KP rankings are subjective and based on a certain set of criteria that aren't perfect, but are probably more accurate than the objective polls or RPI or something. It's probably the best we have. With teams that are generally good, I think a slow pace works against them, and a fast pace works well for them (eg UNC). Obviously, the more possessions played between a good team and a bad team, the lower probability of an upset. With Wisky, the scores are always going to be fairly close. They're going to "hammer" teams 60-48, not 80-64.
So with KP and the betting lines being fairly close to each other during the regular season, we can assume that their methodology of setting lines is similar, if not just taking KP's work and using it as their own.
So what is KP missing here? It doesn't account for players who are out, but that works in Wisky's favor, not Cuse's. It doesn't take into account for a team making real progress and getting better (or worse) during the season, where I don't see any real advantage for either team. My hypothesis is the public underrates Wisconsin and the books are taking that into account. But I'm a n00b, so I could be completely off.