Marcus was a great all around player, except for shooting. Sure he cheated on defense a lot but he was still a better defender than Hazell. That Hazell is some magical shooter (and the fact that he'll even get a sniff from the NBA) is a bit of a myth. He's never shot over 36% from 3 in any season. Yes he has games where either through a good streak, or through a huge number of shots, he goes off in total points but he's not a great defender, not a good passer/distributor, not especially quick, has an awful A/T ratio.
They both play/played a ton of minutes and took a huge number of shots (though in my mind Marcus was more justified being that he was never a frosh/soph and never had teammates as good as Hazell's nor a PG on his team) and Hazell has a better 3PG shooting percentage but in every other category, statistical and otherwise, Hatten is/was Hazell's superior. If Hatten had Hazell's height he would have been legendary. Hazell's a very good college scorer and I wouldn't mind having him on STJ's right now but he's overrated in general especially by many of us here. He's a longshot to get drafted and an even longer shot to ever make a roster. Plus he has big ears. ; )