Have not fished Mich much but have lived in Northern IL my whole life, 49 years and do fish Wis waters a lot also. For me the darker craw patterns, chartreuse's and chromes colors seem to work best.
Square Bill = Craw, shad or Char Black Back. Wis I add perch patterns
Traps = Chrome Blue Back works about everywhere. Char Black Back in stained water or any water that also has big Small Mouths and Shush on this one LOL on cloudy rainy days Tequila Sunrise is killer for large mouths
Med divers I like the shad or craw patterns, Char colors in stained water, a color Bomber calls Silver Shad I believe its the 6a model I use most, works great in clear water but you may have to do some work to find that color for I do not think they make it in that color anymore. Basically its a shad color with a pink line down the side instead of the char you see in sexy shad patterns. I have 5 left and they only come out during tourney time.
Deep Divers, pretty much the same as above but will add solid white or bone org belly and char blue back. Mann's 15 plus in the bone org belly, char, brown crawfish and firetiger have produced many bass for me.
Another great lure, The Original Rapala Countdown Minnow in the Silver Color or Perch if fishing Wis. Absolutely deadly. Have not tried the new Scatter Model yet
As you can see I am old school when it comes to crankbaits. Bomber, Mann's, Big O, Rattle Trap, Bagley, Poes on occasion, older Rapala's and so forth. If it anent broke don't fix it. I do change the hooks out on all of them though.