Crocodile is a better DF user than Smoker. Nobody should be arguing that, since Smoker's use of his Devil Fruit isn't particularly creative, while Croc prides himself on having absolute mastery of the Suna Suna no Mi. That being said, what we know of him and his power right now means he has no way to combat other Logias directly, while Smoker clearly does with his haki and jitte. For now, Smoker beats him low-mid diff, only by the merit that Crocodile just doesn't have a way to get past his intangibility.
It's difficult to put Crocodile up against characters we've seen post-TS, especially Logias with haki. Not only can he not hit them, but they can hit him - it's not really a fair battle. Turn off Logia intangibility and Crocodile wins, give Crocodile haki and he wins, but from what we've seen of the two of them, Smoker takes it.
It's difficult to put Crocodile up against characters we've seen post-TS, especially Logias with haki. Not only can he not hit them, but they can hit him - it's not really a fair battle. Turn off Logia intangibility and Crocodile wins, give Crocodile haki and he wins, but from what we've seen of the two of them, Smoker takes it.