The problem I have with the 5e Paladin is that I dont know why they get their special power if they dont have their old restrictions: they are not divine and only driven by their conviction to their oath, but they still get divine spellcasting, divine smite and strike. In game, what's the difference between a fighter championing a cause or a faith and a paladin? Why does a paladin"s conviction gives him divine spellcasting and not to a devout rogue? I get why they wanted to stay away from the old-school zealot/stick in mud paladin for 5e, but the execution is weird. In 5e, the paladin's stuff makes me feel like they should have been more psionic (power from willpower/ego/self-conviction) than divine. In the games I DM, paladin's abilities are described more as infectious fanaticism and power of conviction than divine (see Pillars of Eternity paladin's stuff). I played a dwarven crown paladin in the last few months to roleplay a Dwarven Defender, but it felt just like playing a Variant:Fighter than something truly special. They are incredibly powerful tho.