Michigan has been pointing to this matchup since before the season. The Wolverines haven't looked sharp in beating Middle Tennessee and Army. They also purposely haven't shown too much. 
The Badgers have outscored their two opponents, 110-0. Those two foes, though, were Central Michigan and South Florida. Wisconsin still doesn't have a good quarterback. 
If this game would have been the season opener for both teams Michigan would have been favored. Playing option-oriented Army is a good thing for Michigan in its preparation against the ground-and-pound Badgers. Look for the Wolverines to load the box daring Wisconsin QB Jack Coan to beat them, which he can't. 
Wisconsin faced two weak defenses. The Badgers are not properly battle-tested for Michigan's elite athleticism and size. Note, too, the Badgers are 1-8 ATS following a victory.