Rikudo Sennin VS Gol D. Roger
Rikudo Sennin,
The founder of the ninja world in Naruto who single-handedly defeated the Ten-Tailed Beast.
On his deathbed, he used a chunk of the Earth's crust (Chibaku Tensei) to seal the Ten-Tailed Beast's body, thus creating the moon.
VS
Gol D. Roger,
The strongest pirate that ever lived in One Piece.
During his lifetime, his skill and strength is virtually unmatched.
He has mastered all forms of Haki, and uses it with great ease. His Haki is believed to be strong enough to knock down even the strongest of men.
Revered as "The Pirate King", he is believed to have a bounty of 1 billion Beri, and owns the legendary treasure, One Piece.