Personally I was glad to see Novak win the US Open. Plus I hope he tacks on a few more majors before he's done. That way he distances himself from anybody else.

I could root more for Nadal, being of a similar culture as myself. But I could never go with the "dominant on clay" argument to choose a GOAT.

There is reason you have 4 major sites... 3 on different surfaces (hard court, grass, clay). To be a true GOAT you have to dominate and have multiple championships on all three.