Which player would improve the most, Federer with Djokovic's mental strength or Djokovic with Federer's forehand?

[mike danny]

Djokovic has had his unclutch moments... but few have hung on the way he has so frequently in the latter stages of GSes like 10-11 USO, 19 W against Fed, 12 AO and 18 W against Dal, and to a lesser extent 22 FO and 20 AO.

Fed is no slouch, but I'm just wondering if he could have benefitted during some of his close encounters with Djokodal during tight moments in slams if he had this almost pathological focus and courage like Djokovic did.

Djokovic's forehand is actually an underrated ATG forehand in its own right with great versatility and it suits his game very well on hard already. Maybe it gives him one or two more RGs or Ws, but nothing more.

Overall I pick Djokovic's mental strength

It's precisely him hanging tough in those matches that has generated the mentally weak talk.

 

[Megafanoftennis100]

Just look back on 2012-2014.

That was just Djokovic getting outplayed and outclassed by his opponents fair and square. His level simply was not good enough to help him escape those losses, mental strength or not.
E.g. a USTA 5.0 player would most definitely lose to 2006 Federer even if the player is the mentally strongest person in the world.
I am siding strongly with the opinion that Djokovic's success in 2011 was largely attributed to the fact that he stormed into the tennis world out of the blue and his opponents did not know what to do, as no one had expected such a level from him. But in 2012-2013, he was playing at roughly the same level as he did in 2011, but the main difference is that by then, the entire field was very focused on beating him. And as a result, he quickly got exposed as being overrated.
Although in 2014, his overall level did undoubtedly drop compared to 2011, with the exception of Wimbledon, Paris, and the ATP Finals.