Oll korrect, the natural answer would be the one with the most intelligence, but then you have to factor in life enjoyment; In most ways, I think pan might be the most intelligent, but being an delphinidae or a cephelopod might be more fun, even if you're not as intelligent. Homo would be a good pick; but you're so heavily predated on your whole life would be a stealth mission, howbeit anyone picking a non-intelligent species is just meming.