I agree with Kate. (I know; I was shocked, too.)
It's a bit analogous to asking what's better: water or beer? The answer entirely depends upon the context. If you want to host a party, I'd say "beer". But if you're trying to put out a forest fire, I'd have to go with "water".
Since this question is usually posed by folks considering getting into logistics (and trying to decide which to start with), and since Blackbeard says they already have both ships, I kinda want to know what the purpose is for them posing the question.