Well, the ACC fielded 7 teams, more than any other conference. But, the qaulity of teams was down pitifully. Maryland has always been shaky, but perennial in the tourney, as is NCarolina, Duke, and Virgina. But all these teams are down, especially Duke, I haven't seen Duke this shallow in a while.
One cannot deny the ACC is is hardest abd most competitive conference. Many of the teams in the Big East would not even place mid-way if they had to contend with the MD, NC, NC state, Duke, Florida St, VA. The ACC has had more teams win the National title (recently) than any other conference.