4 way tie in 2002, Bo's first season.
Winning a natl title is a pretty tall order. I love Gard & Painter and think both are capable of doing so, but it takes some incredible luck and great fortune to do it. UVA won but could have easily been bounced several times during their run.
Izzo has had numerous teams with the talent to win it all but only once in over 25 years managed to pull it off.
The B1G as a league gets the shaft IMO in seeding. Because the league is so tough top to bottom, the champ is often saddled with a bunch of Ls, far more than in other leagues. The ACC champ nearly always gets a #1 and a far easier path. Same for Kansas and whichever small conference team decides to go 31-2 every year. How many #1 seeds has the league even had? Illinois in 2005, OSU with Oden. UW in 2015. Any others since the Flintstones?
edit: missed 3 other #1s-- 2011 OSU, 2012 MSU, 2013 Indiana. 6 #1 seeds in 19 years since 2001. None for those good Hummel Purdue teams, none for Michigan, all of Bo's really dominant clubs prior to 2015...