[rice_classic]

All joking aside.

Crank HP is a better rating. Because it measures the power of the engine. So when you're told how much power the engine makes the manufacturer can be more accurate. Once you start measuring power after that (hub dyno, rolling dyno) there's SO many variables at play that can change the figures so giving an accurate number to the public would be like a blind man throwing a dart at a moving dart board.