I like more of the lighter ones, then the darker ones. But I will drink both. Dark beers are filling, and I can only drink one or two before being full. The lighter ones (not coors light, micro's) I can drink all night.
O MAN, the darker the better. I like a heavy beer thats gonna keep me busy for a while. Oatmeal Porters are my favorite. Guiness is good if the bar doesn't have a big selection. Beers like natural light remind me of when you are cutting the grass and some of the clippings get into your dog's drinking water. I would sooner ask for a dirty dog dish than a miller lite.
I pick "other." I'm not a big fan of light beer because it tastes really watered down to me, but I don't like most actual dark beers because I think they're too heavy. I go with "regular" beer that often has a light counterpart.
I do a bit of homebrewing and like to drink lots of different beer styles. Definitely depends on the season and my mood, but generally I like darker beers or at least more flavorful beers. Lighter beers can be good with some things (like sushi) or in summer when you just want a lighter and more refreshing drink.
I've had Michelob Dark and that is quite nearly indistinguishable from any other generic mass produce slightly alcoholic water.
If you're going to try something other than that, give Goose Island India Pale Ale a try. For a dark, Unibroue Maudite or La Terrible, mmmmm tasty!
Remember it's the taste Baby, it's the taste!