If you can't understand why he was a loved and revered player at Ohio State, I'm questioning whether you remember or even watched Ohio State basketball over the last couple of years. If you don't like him, that's fine.. But, it's pretty obvious why he is beloved.
For one he studied PRE-MED with aspirations of further study while playing here. One of those activities would be too difficult for a high majority of college students, let alone being highly successful at both.
Secondly, I've never seen a player play with such heart on the court. He wouldn't just dive on the ground for a loose ball, he would fly over tables to try to save a loose ball. His on ball pressure is a work of art. 2 time Big Ten defensive player of the year, 4 time Big Ten all defensive team. Holds Ohio State's career assist and steal records. He had 5 games in his Ohio State career where he racked up at least 6 steals. Recorded 98 steals in 2012 according to Wikipedia.
Third, His buzzer beating game winning 3 point shot against Iowa State in the 2013 NCAA Tournament.
No, he was not the greatest shooter during his time here.. However, LaQuinton Ross was MIA last year after Deshaun Thomas left for the NBA, then was even ejected against Northwestern, I believe. Nobody on last year's team was good at shooting the ball. It's not like Shannon Scott was knocking down shots left and right either when Craft was here.