Difference is Sanji can't hurt Akainu, let alone scar him
"Akainu: Are you allowing your Logia nature to make you a little too overconfident? / You are mere "fire"... whilst I am "magma", with the power to consume even fire itself!! // My ability is a natural enemy of your own, boy!!!"
This is the correct translation. Red flames blue flams black flames, doesn't matter, flames got nothing on magma.