Allstate has taken the stance in the past few years to fight every case no matter what. They will start out by offering a low ball offer sometime as low as 25% of the medical bills. They know that if you take it to court it will cost the attorney a lot of money to fight it. The best thing for people to do is not to by Allstate, or Grange, they are the two worst. Also file complaints with that Ohio Department of Insurance, they govern most insurance companies (they may not govern you auto policy though).
Part 1
Part 2