I want to be able to heal dungeons comfortably as Paladin, for which you seem to need to have a workable set of intellect gear. I hear what most people do is switch to healer set whenever they do dungeons.
What I wonder is how much of a difference it would make if I were to just wear intellect gear all the time while leveling, I’d rather keep it simple and keep it to 1 set. How much would the solo leveling efficiency suffer?
It will be a lot slower unless you get some pretty good 2h weapon and keep getting new ones as you level up.
If you intend to level up also with int weapon/offhand then I think you’d be better levelling in a holy build, holy shock is a decent burst tool and improved SoR works good if you have enough mana to spam judgement.