Conference Record Winning Pct.
1.Big Ten 65-12 0.844
Unbeaten Teams: Wisconsin, Michigan St., Illinois, Iowa, Ohio St.
2.Big Twelve 47-12 0.797
Undefeated Teams: Oklahoma St., Iowa St., Kansas
3.Big East 44-12 0.786
Undefeated Teams: Creighton, Villanova, Butler
4.Pacific Twelve 54-15 0.783
Undefeated Teams: Utah, UCLA, Arizona, Oregon
5.Atlantic Coast 69-22 0.758
Undefeated Teams: Pittsburgh, Syracuse
6.West Coast 46-16 0.742
Undefeated Teams: St. Mary’s, Pacific
7.Southeastern 56-19 0.747
Undefeated Teams: Texas A&M, Missouri, Mississippi
8.Amer. Athletic 44-15 0.746
Undefeated Teams: Connecticut, Cincinnati
9.Atlantic Ten 57-22 0.722
Undefeated Teams: Massachusetts, George Washington
10.Mount. West 40-23 0.635
Undefeated Teams: Utah State, Boise State
11.Missouri Valley 36-22 0.621
Undefeated Teams: Wichita State, Missouri State
12.Mid-American 40-26 0.606
Undefeated Teams: Toledo
13.Conf. USA 63-42 0.600
Undefeated Teams: Southern Mississippi
14.Independent 4-3 0.571
(N.J.I.T.)
15.Western Atl. 29-26 0.527
16.Horizon Lg. 32-29 0.525
17.Ivy League 23-21 0.523
18.Ohio Valley 40-45 0.471
19.Sun Belt 25-29 0.463
20.Big Sky 22-26 0.458
21.Colonial Atl. 25-31 0.446
22.Patriot 25-32 0.439
23.Big South 32-43 0.427
24.Big West 22-31 0.415
25.Southland 35-50 0.412
26.Atlantic Sun 27-40 0.410
27.Summit 18-27 0.400
28.Southern 26-46 0.361
29.Northeast 23-42 0.354
30.Metro Atl. Atl. 20-40 0.333
30.Mid Eastern 27-54 0.333
32.America East 18-38 0.321
33.SW Athletic 17-41 0.293
32 Unbeaten Teams Remain
Shayn Roby's College Sports 
Reblogged this on shaynroby and commented:
Shayn Roby’s Take: By out of conference winning percentage, the top five NCAA Division basketball leagues are as follows: 1. Big Ten, 2. Pac Twelve, 3. Big Twelve, 4. Big East, 5. Atlantic Coast