Want to start a fight between MMA fans in a bar? Bring up the â€˜best pound-for-poundâ€™ debate. Never fails to raise tempers.
Here weâ€™ve got Chael Sonnen, Kenny Florian and FUEL Tvâ€™s Ariel Helwani stating their case for Anderson Silva and Dan Henderson.
Georges St. Pierre is always a popular choice, as is (or rather was) Fedor Emelianenko and Jose Aldo.
Who is your pound-for-pound best fighter?