I generally make dozens of characters, and they all must look different. I started Dark Souls not knowing there was more in-depth customisation of the faces, so my first about 5 characters all got preset faces. I deleted them. I cannot stand preset faces where I could have done better.
That said, there are about 2 general ones I try to recreate appearance-wise. Rex, a massive older male with shaggy-ish silver hair and silver eyes, bit o' stubble, scars if possible, first seen in Dragon's Dogma, and my initial Monster Hunter character, a well-built black male with a long fringe to one side that is lime (think full green and two thirds red RGB). I know, silly, but it's tradition now. As I've said, other than that I go for all sorts. I don't really have any other option, I like each character to be different. I generally make more males, and they tend to be square-jawed types, but about two fifths are female and sometimes I put in what I think are drastic features on a whim and they turn out alright. Don't want to be stuck in the rut where you make the same face because you notice the changes a lot better in the customisation screen than you ever would in-game.
I also have Jinro, who isn't tied down appearance-wise but where applicable will be a massive heavy-weapons wielding orc or monstrous human, with good crafting skill and a bit of fire magic to aid in smithing. Sort of a prepackaged backstory. But since orcs aren't always available he's not defined in the looks department. It really depends on what's there. Although, underbite is fairly easy to recreate.
EDIT: Also though, I understand there are a large portion of people who are averse to making male characters because they prefer a female's ass. It strikes me as something fairly unaccomodating to role play within the game though. I don't think either way about it, regardless of the character I use, unless the armour's real silly.