Bader's strength is wrestling, and Cormier owns him on the ground IMO, Cormier edges Bader in the standup too IMO. I honestly do not to see anyone other than Jones who can challenge Cormier. Look for AKA to own the middleweight, lightheavyweigt, and heavyweight divisions by the end of the year.
All by dump and hump. I agree with Ethan, DC would control the fight everywhere. Honestly I don't think he could beat AG, Rumble, or DC. To me it's those 3 with Jones when he gets right, then Badger and Shad, then everyone else. Those 2 will serve as gatekeepers for up and comers, good enough to beat most guys but not good enough to beat the top 4. IMO