Well, lemme restate what I said earlier. With younger guys, SHAVE! Maybe a goatee or a really thin beard is alright, but otherwise, please shave.
With older guys, either way is fine. There was an episode of Top Gear when they went to the North Pole and all of the guys didn't shave the whole episode and they had a slight beard, THOSE looked alright on them because they're older dudes.