If best CFL team played best US football team, who'd win?

As much as i love our CFL, even playing CFL rules, overall the NFL has better athletes. Marginally better but in a sporting competition, margins are what makes the difference. I was in Oregon during the NFL strike back in the 80's and watched CFL with co-workers during the strike and they were amazed at the action of our game and recognized alot of the players from their college careers. NFL would win in your first scenario, CFL would win the others. If you gave the NFL a 10, the CFL would be a 9.8 with the XFL a 7 and the top US college team an 8.