Careful, Your inner Zorofanboi bias is showing. Zoro's just barely showing things he's capable of doing, and he also just got thrown through the ringer with Enma and his now training with it. Sanji got his Enma last Arc but we haven't seen him train with it or anything just used it for "spying" and a little bout. Now if you want to talk about how his attack did something to something sizable; Then Wadatsumi blowing himself up and Sanji his Hell's Memories is similar. Sanji took a bullet in his arm, Zoro got stabbed and fainted after his defense, /shrug Take what you will but again try to stay objective.