BJ is 16-10 but that's because he had one win in his last 7 fights. He's considered one of the greatest when he's held a championship in two divisions. That's what people will remember, rightly or wrongly.
And like the Diaz brothers, Penn is a bit of a whiny bitch.
http://www.mmamania.com/2016/3/14/11...r-mcgregor-mma