I'm not entirely sure how much this RG is affected by it being in October compared to the change in balls, but with the old balls in May/June I'd still blindly back Nadal for the forseeable future.
Hugely important final in terms of the future GOAT discussion. Rafa can equal Roger, whilst Novak can draw within one of Rafa and two of Roger.
Rafa may only realistically win one more French Open next year, and that's probably only if he continues with his mental edge over everyone with victory in this final. Novak maybe has two more potential GS winning years in him. I don't see Roger winning another one.
It's really on a knife's edge.