(Psi)SeveredHead
Adventurer
What makes the paladin special and such a challenge is not Smite nor is it Lay on Hands, it's being Lawful Good and having a specific code to follow that could cause you to fall. A Paladin isn't just a holy warrior so please don't dilute the class because you want all it's goodies with none of it's restrictions.
Being a paladin isn't about power gaming. Paladins aren't more powerful than other classes, not even in 2e (they got some abilities fighters didn't get, but not Weapon Specialization and had to pay more XP). An RP mechanic would be a terrible method for "balancing" a class anyway. (That works in FATE, but nowhere else.)
The problem with the code is that it's vague, along with alignment, except for a few specific areas, see below. The much-maligned Palladium system has a far better description of lawful good than TSR and WotC ever came out with. TVTropes has a better description as well. WotC won't crowdsource the code either, as they aren't actually listening to the fans. (Most fans who replied to the initial ranger thread wanted no magic. How did that work out? Aragorn clones.)
Even worse, the paladin code is hostile to adventuring. You can't lie doesn't make sense in a code. You can't lie to friends, superiors, other members of your religion, etc, all that makes sense. But not being allowed to lie to opponents is stupid. But lying is just one of the worse parts of the code.
You can't act dishonorably, and must protest and complain when other PCs do so. Note that I'm not talking about "looking the other way" while an evil PC tortures a captured goblin, but that you can't use stealth or other forms of common sense except as a last resort. You can't associate with someone evil for even a short period of time (say, smugglers who can get you to your destination quickly) without getting someone to cast an Atonement ritual on you afterward.
At least they've brought back a semblance of the older Favored Enemy for the ranger instead of that everything is a quarry crap that was in 4th edition.
Maybe I'm being trolled here. I won't make any more responses to this thread, just in case.