I can't speak to the million dollar backfield, but if the backs I have seen I would go:
1.)Craig-stated as a FB transitioned to a hb was an ultimate threat out of the backfield, in fact led team in receptions a couple of times even with Jerry on the team. Plus the first 1000/1000
2.)Gore-spent his prime on really bad teams, however has aged gracefully and I'm still pissed he didn't get at least one carry inside the 5 in the Super Bowl.
3.)Watters-was a little too loose with the ball, but production was great and was a vital cog in The shanahan coordinated WCOs
4.)Hearst-I still cringe at his injury in Atlanta in '98 divisionals, I really think we win the Super Bowl that years if he doesn't get hurt.
[ Edited by Niners816 on Apr 23, 2014 at 6:12 AM ]