Current status: Regionals complete; Super Regionals in progress.
This is a 'scorecard' by conference for 2006, the 8-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.
Here is the 'histogram' of the success rate for the 2006 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 3 1 LSU and UF stay home
ACC 7 1 2 4 NCState lost in 1st round
Big-12 7 1 2 2 2 Nebraska (#6 seed) 0-2
Pac-10 4 2 1 1 solid this year
Conf USA 4 1 1 1 1 deserved four?
West Coast 3 2 1 up from one bid last year
Southern 2 1 1 solid showing
Big West 2 1 1 good (CSUF) and bad (UCI)
WAC 2 2 .
Mo-Valley 2 2 .
SunBelt 2 1 1 .
Big South 2 1 1 .
Atlantic Sun 2 1 1 .
Mid-Continent 1 1 Oral Roberts over Okla.St
Metro Atlantic 1 1 upset National 6 seed
Colonial 1 1 .
Big Ten 1 1 .
MAC 1 1 .
Mountain West 1 1 .
Big East 1 1 Notre Dame goes 0-2
Southland 1 1 .
Patriot 1 1 .
Atlantic-10 1 1 .
Horizon 1 1 .
Ohio Valley 1 1 .
Ivy 1 1 .
America East 1 1 .
Northeast 1 1 .
MEAC 1 1 .
SWAC 1 1 .
independent 0 . . . . . Miami now in ACC