I like all kinds of chocolate -- especially if I can cook something with them.
Good-quality white chocolate is delicious, but I also like very dark chocolate -- Ghiradelli's 90% Dark is good.
Semi-sweet tends to make my teeth hurt or just hits that weird sweetness level that is somehow sickening.
I like milk chocolate, but I would love to see dark milk chocolate at some point -- dark chocolate with milk. It would be interesting, I think.
Anyway, I should probably pop off of this thread now -- I'm giving up chocolate for Lent, and this is making me want truffles.