Interesting article about the changing fortunes of the two. https://www.wsj.com/articles/f1-loses-out-to-motorcycle-grand-prix-in-malaysia-1506852489
It's not even close for me. Bikes have ALWAYS been better than cars as a racing spectacle. Even when cars were allowed to race each other bike racing was better. When pit stop strategies can influence and even decide the outcome of a 'race', then that's not racing for me. Bob