Despite the name, I consider the "Sexy Hancock" mod to be the end all Hancock replacer for lore and faithfulness to concept art. It's a great mod, the only one issue I had with it is that Hancock is a little bit baby faced.
Originally started editing hancock just to give him Sideburns + Colonial(Which isn't offered as an option), but ended up tweaking his features to be a bit more strong featured, a bit more sly, and a bit more harsh/bony.                        
I think the end result looks a little closer to the way he appears in the concept art
Requires Sexy Hancock mod to work correctly: 


Credits to Dsythe for making the original mod


(About the shitty screencaps: I have my settings just damn perfect, and don't want to put them to Ultra for one session of screencaps, so feel free to upload better ones if you use the mod.)

Other Subtle Character Edits:
Subtle Preston
Subtle Macready
Subtle Mama Murphy
Subtle Skinny Malone

Other Face Edits: 
Mama Murphy Concept Art
Hancock Edit