I wanted a paladin that was a bit less "righteous defender of the light" and more "chosen by a specific god". To this end, I made what was essentially a paladin with a bunch of stuff slotted out and the ability to slot it in when necessary. I took away the heaviest class of armour as I felt most of the characters in the setting wouldn't be wearing platemail anyway and it was a bit more thematically appropriate.
Still looking for titles for all the levels, though.