Rockhold keeps him at bay and out strikes him, Storm lands a 720 degree spinning back fist to Cungs face, also keeps even shorter arms Le at bay. Hawn could be competitive with Miller, but doesn't have as good of striking or submission grappling.
I think Storm vs Rockhold could be very interesting. I agree that Storm probably takes care of Le. Miller probably wins but Hawn has great power and TDD and would probably have a strength advantage. Would be interesting.