Vettel. not even open to discussion.
this is a car which has been at the last place for eons and now they won. No, Vettel won. Anyone who cannot see that Vettel pushed this car to the limits and beyond in my world cannot call themselves true F1 fans, the last time anyone showed this in F1 was James Hunt in the '70-ies and I doubt if we will see anything like this again in a long long time. So we saw something which only happens once per generation. A thing we may very well tell out children and grand children about one day.
LH, interesting. Especially cos after Fuji all the observers who noted he drove without any spray, were nearly killed by some other people cos LH was 'amazing'. Now the tables are turned, he is still amazing and Vettel only won cos he didn't experience spray. LH did not deliver by any means a performance as unique as what Vettel did. Schumey once almost won a race stuck in 5th gear for almost the entire the race and Rubinho once started 18th and won.
So from a historical perspective, the man of the race and maybe even the season is Vettel. No one else could have driven that car the same way. Not even LH.