My general ranking.
List includes number of seasons as HC at P6 conference level, with winning percentage at current Big 12 school. My rank takes those details into account, but also considers other factors (such as tournament appearances and performance; success at multiple shools).
1. Self (19) .820
2. Huggins (29) .644
3. Kruger (22) .609
4. Drew (16) .608
5. Dixon (16) .646
6. Weber (16) .628
7. Beard (3) .701
8. Prohm (4) .620
9. Smart (4) .508
10. Boynton (2) .492
Bottom 4 is affected somewhat by body of work compared to top of the league. Four of top 6 have at least one Final Four appearance, Shaka is only other, but all things considered that alone doesn’t elevate him (to me).
Edit: When I posted, I had swapped order among 4-6, so it isn't top 4 with FF, Weber was in my 4-5 slot initially.