North Carolina
21
North Carolina has won 18 ACC Tournament Championships and 31 regular season titles.
The Wisconsin Badgers Men's Basketball team has a total of 19 Big Ten Championships. (17 Regular Season Championships, two Conference Tournament Championships)
Purdue
Duke has 23 ACC Tournament Championships and 22 regular season titles.Duke has 23 ACC Tournament Championships and 22 regular season titles.
North Carolina leads with 25 ACC Tournament Championships and 34 regular season titles. Duke has 23 ACC Tournament Championships and 22 regular season titles. Duke has won 19 ACC Men's titles, UNC has won 17. UNC has 9 Women's titles, Duke 8. Total titles: Duke 27, UNC, 26.
One in 1990.
North Carolina
Yes, one to Ohio State during the regular season and in the NCAA Finals to the University of North Carolina Tarheels
Yes. South Carolina won the SEC regular season championship in 1927, 1933, 1934, 1945, 1970 and 1997.
They played 31 regular season games that year82