Durant was great in college but your 'college career' is determined by what you do in March, fair or not.
He went out in the round of 32, although he played better than I remembered in that tournament with 57 total points.
He had a great year in CBB, his career in CBB is not and will not be remembered. Except by Hollinger apparently.
Fair or not, disagree or not, Carmelo is a legend in CBB. Durant is not. He had a better CBB career than Kobe or LeBron, and better than Luol Deng, but you can't say he had one of the all time greatest CBB careers. One year, as fantastic as it was, doesn't make a career unless you win more than 1 tournament game. Hell his team lost 10 games that year.
Also, Durant played with two other NBA players on that team, DJ Augustin and Damion James. Melo played with Hakeem Warrick, but again, they won more than one tournament game.