Who's No. 1? is a sports series that debuted on ESPN25 in 2004 to celebrate the 25th anniversary of ESPN. Hosted by Stuart Scott, the show counted down a “Top 25 over the last 25 Years” list, counting down to #1, in such categories as Best Teams, Worst Teams, Biggest Flops, Greatest Records, Most Outrageous Characters, Biggest Controversies, etc. during the history of ESPN,... Wikipedia