BCS Buster School: Regular season record, Sports Reference SOS, AP rank at begin of season, AP rank at end of regular season
2004 Utah: 11-0, 0.43, 20, 5
2006 Boise St: 12-0, -2.58, NR, 9
2007 Hawaii: 12-0, -5.79, 23, 10
2008 Utah: 12-0, -2.06, NR, 7
2009 Boise St: 13-0, -4.28, 14, 6
2009 TCU: 12-0, -1.33, 17, 3
2010 TCU: 12-0, -1.73, 6, 3
2012 NIU: 12-1, -7.50, NR, 16
2014 BYU (Through Three Games): 3-0, 1.29, NR, 21
An explanation of the SOS formula is here:
http://www.pro-football-reference.com/blog/?p=37 . Zero is an average strength of schedule. The more positive the number, the tougher the schedule. The more negative the number, the easier the schedule.
I understand that the BCS and current playoff are fundamentally different systems. Because both systems use(d) human polling to one extent or another, I do think comparisons between former BCS Busters and current "Non-P5" teams can be valuable. We should also understand that it is early in the season and there is still a lot of football to play.
Moral of the story: BYU should be in a good place to play in an NY6 bowl if they go undefeated.