SEC
duke
duke has 27 acc mens basketballs championships while UNC has 18
Assuming you mean football..FSU has won/shared 12 ACC championships.
UNC and Duke tie for 17
one
Clemson has one ACC tournament title.
11 total North Carolina 5 Duke 3 North Carolina state 2 Maryland 1
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.
Duke has 23 ACC Tournament Championships and 22 regular season titles.
PAC10 with 15. UCLA (which is in the PAC10 ) has more title then all the conferences expect the ACC. UCLA has 11 titles.
North Carolina has won 18 ACC Tournament Championships and 31 regular season titles.