Tabasco fruit Suits his fiery person!
But what I really think, is that we have pun coming on our way.
Think of the other admirals,
Aokiji's nature is kind of warm and nice, opposed to the icy cold fruit.
Same with Kizaru, the guy is not too bright but has light logia?
Red dog seems cruel guy that holds the "Absolute Justice" so his fruit is something nice and 'fluffy'
Maybe Choppers favourite kind cotton candy logia? Well, maybe not but along the guidelines.