Siciliano di Brooklyn -
Best Kerr Ever vs Best Brock Ever?
Kerr era rules or today's rules? Back in the day we had dan Severn, don Frye, Mark Coleman then Mark Kerr and they changed the rules so those monsters couldn't just take you down, grab your wrists then headbuttt you to death.
Modern rules I don't think any of those guys can compete with the true athletes in MMA, but old school NHB they'd still wreck some guys.