As far as style of preparation, I really like turkish/greek coffee and espressos or americanos. I'm fairly snobby, but I'll still drink drip assuming a fine-very fine fresh grind. Percolator coffee makes baby jesus cry. I much prefer it straight, without milk or sugar pollution... though I can drink it that way if need be.
For the beans, I'm pretty fond of sumatran/indonesian stuff, ethiopian and east african beans, and brazillian stuff (essential for turkish coffee). I will drink other latin american origin coffees, but I don't really care for them. To hell with colombian beans. Lately I've been getting into kona beans, which are really good but kind of expensive where I am. I've definately come to prefer rotating single origin coffees, over any sort of blend.
What I cannot stand is flavored beans. They never taste right, and the roast has to be very light to taste anything at all. They're an insult to coffee drinkers.
I prefer a nice dark, almost smokey french roast. I'll drink others, but I prefer the darker roasts by far.