Obviously I'm a Duke guy, so right off the bat I'll admit the bias.
That being said, I genuinely do think it is Duke, and honestly clearly so. That 2001 team had an (literally) unrivaled resume:
- Two different national players of the year
- Five future pros who played a combined 51 years in the NBA (and that is including Jason Williams' career that was cut short by over a decade after his accident)
- ACC POY
- National Defensive Player of the Year
- Preseason Tournament Champions
- Conference Regular Season Champs
- Conference Tournament Champs
- National Champions
- Won every NCAA Tournament game by double figures
There are several other teams in history that can check two or three of those boxes, but that Duke team is the only one in the 64-team era to boast all of those things.