Doffy must be the weakest COC user now that I think about it
Chinjao in his prime was likely a margin above him
he definitely is
no advanced haki whatsoever
no notable hax, his best hax move (parasite) is dependent on too many things like the strength of the character he's controlling and whether they have a way to just burn/freeze/whatever his strings (which is bad as too many characters can already use fire or transform or some shit)
his strings, even when awakened, can't even pierce through basic Armament Haki usually
he's my second favorite villain but when it comes to powerscaling he was very pathetic, i still put him at yc2 level but i can see why a lot of people think he's only yc3 level
if not for things like him being able to fly he'd be murder stomped by cracker