Personally, I like to hand fly the a/c.
I've seen (as an FO) too many instances of PF doing his own FGC selections while hand flying, and making a roaring james hunt of it.
So I still like to hand fly and I ask the PNF to do the FGC.
And if my FO wants to hand fly, I'm tickled pink....and I do his FGC stuff.
And if he tries to do his own FGC and hand fly too.....I stop him.
Call me old fashioned...............................