I miss the archtypes of 2e and earlier. Paladins weren't just "religious fighters," they were built to fit a very specific niche and archtype. Not one of mechanics either. The classes (before the kits came along, at least) weren't meant to be small nuggets of mechanics like they were in 3e and 4e, but romantic fantasy archtypes, and each one had accompanying examples of real life of fictional characters. The fighter was the weapons master and man-at-arms, becoming a lord of his land, leading soldiers to battle. The cleric was a warrior of his god, dedicated to a singly ethos that guided his behavior. Paladins were ordained champions, dedicating a portion of all their gold and treasure to their church (I'd LOVE to see someone try to pull that in a modern D&D game!

), . Thieves were called
thieves, and they didn't sneak attack while flanking, they'd have to take an enemy completely by surprise and backstab them - and in doing so, usually did enough damage to drop them, which was the whole point. It wasn't supposed to be used in the thick of combat. It was a sneak up and murder ability.
Did it always work out mechanically?
Well, no, not really. But the feel and flavor of it all, that's something that hasn't been repeated. I loved the fact that each class had examples for you to look at, and that the book suggested you
visit a library to read up on fantasy books and mythology. Take the opening paragraph for the paladin in the AD&D PHB:
The paladin is a noble and heroic warrior, the symbol of all that is right and true in the world. As such, he has high ideals that he must maintain at all times. Throughout legend and history there are many heroes who could be called paladins: Roland and the 12 Peers of Charlemagne, Sir Lancelot, Sir Gawain, and Sir Galahad are all examples of the class. However, many brave and heroic soldiers have tried and failed to live up to the ideals of the paladin. It is not an easy task!
How could that
fail to get you pumped up and ready to play a paladin? Or lets look at thief:
The profession of thief is not honorable, yet it is not entirely dishonorable, either. Many famous folk heroes have been more then a little larcenous - Reynard the Fox, Robin Goodfellow, and Ali Baba are but a few. At his best, the thief is a romantic hero fired by noble purpose but a little wanting in strength of character. Such a person may truly strive for good but constantly run afoul of temptation.
That one paragraph tells you
so much about what it means to be a thief. You have your archtype, your historical and fictional references, your style of gameplay. And if you don't recognize the name, what did you do?
You went to a bloody library and read about it!
I wish more games encouraged kids to read :<