Through my years of mmo and rpg gaming I’ve tended to swing between the two extremes of the warrior/wizard dynamic.
Some days I just want to be a dumb tank in full armor soaking up hits and acting as a wall for squishier classes. But then there’s days where I love being a glass cannon that can kill something in 1-2 nukes but a strong breeze can kill me.
The least fun I’ve head with a class was as a healer druid in Everquest. Something so stressful about the party relying on you for heals and if you wipe it’s generally your fault. idk how people dedicate themselves to a class like that.
Roleplaying a hyper religious zealot makes a little more sense at least in universes where gods frequently interact with mortals and grant them magic powers. Maybe you can get your powers from the God of Socialism.
If you stray from the path, you get the Revisionist trait and your God calls you a 
until you finish your redemption quest in front of the rest of your order.
Or something. I’m just shitposting. Paladins are fun to play cuz they’re like less boring fighters that also cast spells.
In a world where magic and gods do provably exist, they would have to have a material reason behind them and as such won’t be excempt from dialectical materialism. It’s not the belief that supernatural don’t exist, it’s that supernatural by definition can’t exist.
Also https://dnd-5e-homebrew.tumblr.com/post/136812581995/oath-of-the-common-man-paladin-by