I know what you are referring to. The narrator declared their battle a draw. The talk with Sengoku afterward, when Shiki invaded Marineford, was only Sengoku's opinion. There were different types of translations out there people used over the years. For example :
1.
2.
3.
Now, I forgot which translation was the most accurate, but.
The fact is, they never really fought each other during edwar(atleast we didn't see arm to arm combat), only fired shots with their ships before the storm ended it. Of course, you could argue now what if they fought? But that would be a classic power scaling debate. Spontaneously, I would also say Roger would take this home, since he also had Rayleigh and Gaban on board. But I am not really a power debater.