I generally agree but, and this is mostly devil's advocate, where I don't like SoS is when the difference is insignificant. For example:
In @ELA 's scenario the plausible three-way tie is at 8-1 between Oregon (lost at PSU), Michigan (lost at UNL), and Ohio State (lost at Michigan). The only opponents that all three have in common are the two UW's, Wisconsin and Washington. Running the tiebreakers:
- H2H2H: Does not apply because they didn't all play and no team defeated each of the others.
- Record against common conference opponents: All three are 2-0 with wins over the Badgers and Huskies.
- Record against the best common opponent, then the next. They are each 1-0 against both common opponents so this does not help.
- Cumulative conference winning percentage of all conference opponents: At this point in the scenario Ohio State leads because their opponents are 26-30 vs 25-31 for Oregon's opponents and 22-34 for Michigan's opponents.
I'm fine with that for breaking a tie between Ohio State and Michigan because the gap is 4 games. It isn't huge but it is significant. Ohio State played four teams that have two or less losses (MN, M, IL, PSU) and went 3-1 while Michigan only played three (tOSU, UNL, USC) and went 2-1. Ohio State played more teams that would have a plausible chance against a league title contender.
If we were breaking a tie between Ohio State and Oregon where the difference is only one game, this seems unfair. The SoS difference between tOSU and Ore is that tOSU played 1-6 Purdue while Oregon played 0-6 Northwestern. That isn't significant. Either the Ducks or the Bucks should easily beat either the Boilermakers or the Wildcats so penalizing the Ducks because the Wildcats are marginally worse seems silly.
My problem is that the above is very subjective and it would be difficult for me to write it into an objective rule.
The thing is, you're going to have narrow gaps sometimes.
I still prefer SoS, even if the gaps are narrow, to subjective analysis like human poll rankings, or to objective but potentially inaccurate things like an analytic.
Also note that as I understand the tiebreakers, you get to #4, you see that Ohio State has the best SoS, and now they've "won" the tiebreaker. But you then go back and re-run it with Oregon and Michigan, excluding Ohio State.
In this case, it doesn't help, because Oregon and Michigan didn't play H2H, and the two teams that Oregon and Michigan lost to (PSU & UNL, respectively), are not common opponents. But in many cases, it actually would help and thus Oregon vs Michigan wouldn't come down to SoS.
But now you return to SoS and Oregon goes to the CCG because they've got a
3 game advantage in SoS, not a 1 game advantage. So Oregon isn't being materially harmed here.
I mean, maybe it would suck if Oregon's opponents were 23-33 and Michigan's 22-34... But them's the breaks. There's a reason it's the
4th tiebreaker, not the 1st.