It's nice to have my own instincts confirmed. I've always been a fan of the five o'clock shadow, and the darker the shadow the better. I'm not, on the other hand, a lover of beards. Once the length of facial hair gets beyond a certain point, it stops being sexy for me.
This is about right:

Or this:

Beard stubble even makes what might otherwise be a baby face, acceptable:

And totally changes my acceptance of an actor, along with my perception of his skill:

(Oh, yes. Titanic, who?)
I will even accept it when a man's facial hair grows in a little white trashy:

(Especially if he is hot, to boot.)
But the award for the most perfect five o'clock shadow goes to this man, based on depth of color, panache, and all sorts of other adjectives:

I believe I've proved my point. You're welcome.