This is a 'scorecard' by conference for 2012, the 14-th for the 64-team playoff system where every conference gets an automatic bid. You can find the full results elsewhere.
My original motivation for this summary was the thought that the regionals are a major source of inter-conference and inter-region play that helps one evaluate the relative strength and (possibly) future seedings of teams from various regions and conferences.
Current status: Super Regionals completed.
Here is the 'histogram' of the success rate for the 2012 NCAA regionals.
I tally a Regional champion under "win" and the Super-Regional champion (the team that goes to the CWS) under "champ" so the "champ" column is unchanged from the older 48-team system.
------ wins ------
Conference Number 0 1 2+ win champ comments
========== ====== === === === === ===== -----------------
SEC 8 1 3 1 3 scary, and only 4/12 stayed home
ACC 7 1 1 3 1 1 good, but more than half got in?
Pac-12 5 1 2 2 solid, 5 of 11 teams are good
Big 12 4 2 2 unexpectedly mixed bag
Conf USA 4 1 2 1 weak, for 4/9 teams in tourney
Southern 3 1 2 Appalachian St beat Oklahoma
Mo-Valley 3 1 1 1 finished the BBQ of Miami
Big East 2 1 1 St. John's ousts UNC (N1 seed)
Mountain West 2 1 1 eliminated Texas A&M
West Coast AC 2 1 1 fair
Southland 2 1 1 eliminated Rice
Big Ten 2 1 1 weak showing
WAC 2 1 1 very weak compared to past
America East 1 1 Stony Brook beat Miami and LSU!!
MAC 1 1 Kent State takes 2/3 at Oregon
independent 1 1 Dallas Baptist still good
Ohio Valley 1 1 Austin Peay did OK
Big West 1 1 bad year for CSU,Fullerton
Summit 1 1 .
Big South 1 1 .
Colonial 1 1 .
Sun Belt 1 1 .
Atlantic Sun 1 1 .
Patriot 1 1 .
Atlantic-10 1 1 .
Metro Atlantic 1 1 .
Ivy 1 1 .
SWAC 1 1 .
Horizon 1 1 .
MEAC 1 1 .
Northeast 1 1 .
Great West 0 x new in 2010 (no automatic bid)