Ok lets look, here is a list of the ranking of schools in the big 12 North final ranking starting in 1999.
99-3, 6, 2000 8, 9 01--8.9, 02.. 7, 20, 2003 14, 19, 2005 24, 2007 4, 7 2008 19, 2009 14 2010 18, 20
Big 10 west in 3 years 2014 13, 2015 9, 21, 23 and last year 7.
Now the Big 10 does not have a lot of data to report back, but the highest ranked team at the end of the from the West was last year with Wisconsin at 7th. The big 12 North had a team ranked in the final ranking 3rd, 6th, 7th, 8th, 8th, and 4th and 7th. North had unranked teams in 2004 and 2006 only. The problem with the north was it was out shadowed by the Southern teams starting in 2000 those teams finished 1, 12 2001 5 & 6, 02 5 & 6, 2003 3 and 12, 2004 3,15,18. 2005 1, 20, 22 2006 11, 13. 2007 8, 10, 22, 2008 4,5,12, 16, 2009 2 and 21 and 2010 6, 13, 19. Since 2010 there as only been 10 teams. The north was eclipsed by the South, but was not the pillow fight many on here believe and certainly in the first years of the conference.