Angel Novalez seems like the obvious pick, judging from this article, the other two would be purely political picks based on race. Novalez has actually shown a willingness to innovate and change the force to improve relations, and that’s the most important thing for a city with Chicago’s issues, rebuilding community trust and modifying how the police operate for the better.
Also Snelling having the “trust of the officers” is just a red flag to me, the officers just want to be shielded by a boss that protects them, sure Snelling may be good for the Chicago cops, but what’s good for them isn’t necessarily what’s good for the city, since the cops of the city have become part of the problems for the city, screw their trust. Chicago needs a reformer and that again seems to be Novalez.