for what its worth I really hope Edmundson doesn't win. I'm imaging he'll tank badly ala Evan Bayh or Ted Strickland.
Bayh is a better comparison. While I agree that Inman is a far better candidate, Strickland tanked due to factors that were completely different than the ones that sunk Bayh.
From what I know about Oklahoma politics, it always seems to favor the "outsider". Edmondson was among the last Democrats to win a statewide election in OK, but he might seem too "establishment" and "of the past" for a statewide election now, just like Evan Bayh. Connie Johnson is just not a good cultural fit for the state at-large. Inman might be the best candidate in the primary.