The Big East has 4 legit top 15'ish teams, and will likely get 6+into the dance.
Nope.
Nova is legit, but have more than a few

games against teams they should have rolled, struggling against W. Michigan (KenPom 231), La Salle (KenPom 105), UCF (KenPom 77) and DePaul (KenPom 177)). I don't think they've been impressive --- maybe fringe top 5 at this point.
Looking down the line at Butler, Xavier, and Creighton...definitely solid NCAA-T teams. Butler has a legitimate resume for a Top 15 team with good wins were over Zona, Cincy, and Indiana. But Xavier's and Creighton's resumes are pretty unimpressive...Xavier's biggest win is Clemson and Creighton's best win is Wisconsin. Overall, the entire conference has
five total OOC wins against the KenPom Top 25.
So, you truly believe that 2+ of these squads are NCAA-T teams: Marquette, Seton Hall, St. John's, Providence, Georgetown, and DePaul?