Did you explain that BMI is a calculation based on height and weight only.
So "Big Country" isn't even an argument.
Roy Nelson- 6' 260lbs BMI- 35.3
Brock Lesnar- 6'3" call it 280lbs(cuting to 265) BMI-35 Looking a lot different.
Cain Velasquez- 6'1" 240 BMI-31.7
Jeff Monson-5'9" at 238lbs BMI-35.1 At 240 its 35.4
Actually, maybe BMI is better for fighters than everyone else. Lower BMI means tall for your weight class.
Thing is, none of the guys on the list above were/are known to gas out and get beat.
Contrast that to
BJ Penn-5'9" at 160 BMI 23.6, at 168 BMI 24.8 and tired.
Mark Kerr, Shogun, Jason Miller are all examples of guys who have come in in great shape, and horrible shape with pretty much the same BMI.
How the hell did this guy even bring up BMI?
Was he tired? Than he was out of shape.
Also, Jim Beam Black is not as good as you said.
Semmy Schilt 6'11" and 281 w/ BMI of 29.7
Tim Sylvia 6'8" and 270 w/ BMI of 29.7
Carlos Condit 6'2" and call it 180 after he hydrates 23.1
All these guys make great advantage of their height.