Those numbers for Bernero are way too high... honestly, he'd probably lose in a rematch with Snyder.
I don't think Peters has any interest in running, and Schauer doesn't have the name recognition to do it.
Whitmer would be a good candidate.
Brooks Patterson is a great county exec, but he's got way too much baggage to run for anything outside of Oakland County.
There's been talk that Fieger will run again. If the Democrats let that happen, I could see that marking the end of Mark Brewer.
This.
There's no way Bernero makes it through the primary, unless he's being put up as a sacrificial lamb. I can't imagine a scenario where Brooks gives up his current position--too much power, and health issues add to it. My guess is that Gary Peters is looking to take Carl Levin's seat one day, and as odd as it sounds, it seems like the Governorship would hinder that ambition.
In an open race, or if Snyder runs again and his approvals are still in the dumps, Whitmer has a very real shot at winning. I wonder if it helps that she was named the Eighth Hottest Politician in the World:
http://www.maxim.com/tv/the-worlds-hottest-politicians
