Generally you shouldn't solely based your assessment of a player on his success in the tourney. Folks that do extremely well in the tourney has shown to fail to adapt to the NBA and folks that do alright thrive in the NBA and vice versa
Keegan is a poor mans Jabari, smaller, older not as good of a defender or shooter but hey he can dribble slightly better and finish around rim a bit more but other than that definitely better !
I wouldn‘t be surprised if Murray winds ROTY - he probably was the best player in college last season. But - and that‘s a big but: he is also 2 years older. He actually is older than every rookie we took last year. And he isn‘t that far off from KPJs age. So he might be more of a finished product - that‘s both good and bad. Basically you almost have to compare his rookie year to Jabaris year 3 in the league. In the end I believe he could very well be an all-star. But I also believe he wasn‘t that much better than Jabari last season and Jabari has 2 elite skills compared to being very good at basically everything. So I‘d take Jabari over Keegan in this draft every year.
By the simple fact that he got drafted by the kings. He will probably be out of the league in 3 years. Also this makes Ivey probably the best player in the draft cuz the Kings passed on him. All the great young superstars have been passed on by the kings.