Lister or Barnett?

I am picking Lister...

Metamoris, IBJJF, ADCC, Grapplers Quest and NAGA really need to look into blood testing...not hating on Barnett per se, but I do not feel it is fair if one person is juicing (Chael) and their opponent comes in clean. This will only lead to more people trying to even the playing field by juicing off top! Normal hobbyists will shy away...