Clearly the Big East is the best basketball conference of all-time. Consider this: 15 of the 16 Big East teams have been to Final Fours. In the past 50 years, seven different Big East teams have won national titles. There are currently NINE Big East teams in the top 25 in the AP poll, and this is a year in which your website predicted the Big East would only be the 3rd best conference.
The Big East is more dominant in basketball than the SEC is in football.