Countdown to UFC 200: Best strikers

Just like picking the best knockouts of the year can be a thankless and grueling task filled with a lot more strong candidates than slots for them, choosing the top 15 strikers in UFC history is one that will likely result in more debates than in any other category.The problem is clear: what criteria earns someone a place on this list? Do you include fighters like Mirko Cro Cop and Wanderlei Silva who are clearly all-time greats but who did their best work outside the UFC? Do you go strictly by