Here's a break down HISTORY of AP Preseason #6 and where they ended up.
2011 - 12 --- DUKE --- 2 seed , First Round
2012 - 13 --- NC STATE -- 8 seed, First Round
2013 - 14 --- ARIZONA - 1 seed, Elite 8
2014 - 15 --- NORTH CAROLINA -- 4 seed, Sweet 16
2015 - 16 --- VIRGINIA -- 1 seed, Elite 8
2016 - 17--- NORTH CAROLINA - 1 seed, National Champions
2017 - 18--- VILLANOVA --- 1 seed, National Champions
2018 - 19-- TENNESSEE --- ????????
2011 - 12 --- DUKE --- 2 seed , First Round
2012 - 13 --- NC STATE -- 8 seed, First Round
2013 - 14 --- ARIZONA - 1 seed, Elite 8
2014 - 15 --- NORTH CAROLINA -- 4 seed, Sweet 16
2015 - 16 --- VIRGINIA -- 1 seed, Elite 8
2016 - 17--- NORTH CAROLINA - 1 seed, National Champions
2017 - 18--- VILLANOVA --- 1 seed, National Champions
2018 - 19-- TENNESSEE --- ????????