He is undeniably the greatest Tour de France champion ever, having won seven consecutive times from 1999 to 2005 (after surviving testicular cancer that had spread to his brain). Rumors about performance-enhancing drug use continue to swirl around him, but he has never tested positive. Even if he was using drugs, so were most (if not all) of the guys he was beating. People say that he's not a nice person, but he has probably done more than any single person to assist cancer survivors. His foundations (first the Lance Armstrong Foundation, then Livestrong) have raised more than $325 million (see here). When he came back to cycling in 2009, he even took time to visit cancer clinics during races.