I hope I did my research correct here but I used the following article to look this up.
https://herosports.com/news/one-and-done-rule-list-college-basketball-nba-visualized

2006 Florida - None
2007 Florida - None
2008 Kansas - None
2009 UNC - None
2010 Duke - None
2011 UCONN - None
2012 Kentucky - 3
2013 Louisville - None
2014 UCONN - None
2015 Duke - 3
2016 Villanova - None
2017 UNC - 1

The 2012 Kentucky team had 3 one and done players, the 2015 Duke team had three one and done players, and the 2017 UNC team had 1 one and done player. So that is 9 champs with no one and done players and 3 champs with one and done players. I don't know if that is enough data to draw any conclusions yet. What it does indicate is that you can win a championship without one and done players. It also indicates that you can wind a championship with one and done players. My personal belief is that Duke and Kentucky have taken the one and done thing too far and that they are too young. They won when they had 3 one and done guys but now they are recruiting four or five of them a year and that too me is too much.