You mean.....who has the bigger D*CK?
I think they should run the same size Outerlimits against the same size Fountain with stock mercury power and see who's boat is better handing and more efficient. That would impress me. I personally don't care who wins this one. Probably 1% of OSO'ers could afford boats like those racing for the worlds fastest V-bottom anyway.
It's really hard to say who will be the fastest. They are both determined to win.