self explained...but feel free to elaborate
for me it has to be Tito and Conor (Athough Ken was a much-much bigger Draw,than Tito,and did a better job than both,in planting the fear in his opponents...The difference is that he never really expanded in anything else besides fighting and pro-wrestling, so he never really had a Plan B. Now it's too late. He is unfortunately a has been...
And just for that reason I will pick Tito over him, as far as self promoting is concerned.