When I imagined "what one piece is," this is kinda what I was thinking. our crew hits an island, splits up and hikes through jungles, tackles arc problems, fight some 1v1s, and then we try to meet up and beat a big baddy at the end. I don't really know if this is what OP will be for 1000 epis, but this part gave me the fun and srs island adventure story i wanted from oda.
Id pick string, seems like I could, you know... break string, or like... untie a knot or somin. I dont like robin, see feels sussy, reserved, and not even our nakama really. I love what oda has to say about religion in this arc, when i see straw hats talking about skypia they never seem to bring up the most important theme