There is only one fanbase capable of filling every seat in Rupp Arena for a press conference on a random Sunday in April. That fanbase has been named the best in college basketball, according to Andy Katz of NCAA.com. The national analyst ranked the sport’s top ten fanbases and unsurprisingly put Big Blue Nation ahead of the pack, using Mark Pope’s debut presser as a prime example of the passion in Lexington. “Three words: Big Blue Nation,” Katz wrote Monday. “Even with long-time coach John Calipari leaving to steer the ship at Arkansas in April, the Wildcats’ fan base showed out at coach Mark…