Big difference between getting highly ranked players (Top 10 or even McD AA) and consensus #1's though. After DT graduated, UCONN didn't make a F4 till they got Charles/Moore. They had Strother and Houston, and both were top recruits out of HS. But I do agree that Geno gets the most out of players, and develop them the best.
Take a team like Kentucky. They have a load of McD AA, but only Linnae Harper was a consensus Top 10 kid (and maybe Walker?). and not even a Top 5 kid. Most were rated in the Top 15-30 (Goss, Stallworth, Epps, Thompson, Oneil). There is a HUGE difference in talent from a Stewert/KML/MoJeff than a Goss/Epps/Oneil. I remember Glen Nelson, from HG, said getting a Top 5 kid is compared to getting a franchise level talent in the NBA. You really need a "franchise" level recruit to contend for NC. Obviously, there are outliers. Sophia Young was not recruited/highly regarded, and she won a NC (though she turned out to be one of the best players in her class). TA&M is another interesting case. I don't think any of their players were that highly rated, but they had Danielle Adams. The Maryland team with Toliver/Langhorne/Coleman, while young were all Top 10 recruits.
Cal really hasn't recruited THAT well. There top 2009 class were mainly kids in the Top 15-30. I guess Hartman was rated high, but injuries have limited her. Reshanda Gray was a Top 20 recruit. Brittany Boyd was a Top 20-30 recruit. Gabby Green is rated highly by many services though.