If you look though normal DnD ranking, you see that Oath of Devotion is usually ranked high above Oath of Ancients. Maybe Larian changed something considerable here? A Paladin generally is restricted in several aspects, best in melee against single targets and with a high damage burst but not very good for longer sustained damage. It sounds to me that Oath of Devotion is better suited for a classical Paladin gameplay overall and in the longer run.
