Iowa State has a better supporting cast, but that also means (1.) you role will be limited, such as Haliburton's role right now* and (2.) you are going to be playing against much better players and athletes in the Big 12 than you would be in the Missouri Valley Conference.
Figuring out how those all net out with each other is kind of hard without real data.
*I love Tyrese, and he is great, but he is not asked to do as much ball-handling as Nick or to create his own shot so much like Marial, Lindell, and Talen. He just has to keep the ball moving, read the defense, play good defense, and make his open threes when he has them. He is benefiting greatly from having upperclassmen around and a defined, limited role.