The first thing to point out is Undertaker's longevity on Smackdown. He was drafted to the show in 2002 and stayed exclusive to the so called 'B Show' until 2010. That's a longer run than any other WWE superstar had on Smackdown. Yes, there was the occasional short hiatus. However, for the most part, The Undertaker was a full time Smackdown worker for eight straight years. When you factor in his recurring appearances from 1999 to 2002, it means that the best part of Undertaker's legendary career has been spent on Smackdown. Not Raw, but the 'B Show'. What was so great about The Undertaker's longevity, though, was that he made it feel nothing like a B Show. In fact, with his star presence and match quality, it oftentimes felt like the A Show. Bear in mind as well that Undertaker was till appearing on Smackdown as recently as 2013 (where he clashed with The Shield). This is one man who tops Angle, Guerrero, Edge and Mysterio for the biggest Smackdown contributions in the last fifteen years.