the Assassin's Creed Ezio Trilogy are the only good AC games.
the others are either worse versions of this formula or just crappy Action RPGs.
PoP has Sands of Time, which is great... but that trilogy loses quality with each new entry.
the 2008 PoP was pretty good as well,
and then PoP The Lost Crown was genius.
so, I'd say PoP wins by a tiny bit, due to how good The Lost Crown was.