King have the edge in physical power.
But Fujitora have certainly better haki and a ultra hax DF power !!!
At the moment I don't see how he can survive a Meteorit, who killed the dinosaure...
Zoro managed to overcome the gravity, so King should be able to do it too.
All can change with speed and mysterious King's race power.
But without more informations I don't think a YC1 can beat an admiral.