My favorite playable class while playing D&D is the Paladin because I like the champion aspect of the character - a lone figure making a stand against the evil in the world while adhering to a strict code of religious obedience - and see it in some of my favorite fantasy characters. The Paladin is the guy that will take the fight to evil ones, draw a line in their path and proclaim, "Your evil ways stop here!". Some say that the Cleric fills a similar role but I do not get that feeling from playing one. The Cleric tends to feel like a religious healer instead of a religious champion. I was a fan of the Paladin since AD&D - I do not claim to have always played them correctly - and I play them more than other classes in games such as Diablo also.