How would set up Big XII tiebreakers?

or any other conference for that matter? what if SMU finished in a 3 way tie in CUSA west similar to what happened to UT, Tech & OU?
We can all agree on head to head which didn't help. We can probably further agree that records within your division is the next tie breaker, but then what?
I don't favor total points for/against as it discourages sportsmanship and I respect coaches who give the 2nd and 3rd team guys playing time in blowout games - to reward them for the hard work they put in only to ride the bench.
What about conference records of the conference teams you beat? I haven't even looked at that to see whether that would have broken the tie. Seems like that would at least reward the team that played the tougher conference schedule.
What do you do beyond that?
We can all agree on head to head which didn't help. We can probably further agree that records within your division is the next tie breaker, but then what?
I don't favor total points for/against as it discourages sportsmanship and I respect coaches who give the 2nd and 3rd team guys playing time in blowout games - to reward them for the hard work they put in only to ride the bench.
What about conference records of the conference teams you beat? I haven't even looked at that to see whether that would have broken the tie. Seems like that would at least reward the team that played the tougher conference schedule.
What do you do beyond that?