Washington (D.C.) Gonzaga four-star safety Kainoa Winston is a top-of-the-board target for a host of national programs. But as the summer recruiting season heats up, one school has emerged as the favorite to land his services, according to the On3 Recruiting Prediction Machine (RPM): Michigan. Winston visited the Wolverines earlier this month and followed that up with a trip to Penn State. And coming out of that trip to Happy Valley, it’s Sherrone Moore and Co. who’ve received expert predictions from TheWolverine.com’s EJ Holland and On3 VP of Recruiting Steve Wiltfong. Those picks put UM’s ch…