Question: is acnologia stronger than natsu?
Answer: No, E.N.D(Natsu) can't win Acnologia if they fight one on one. Natsu uses Dragon slayer magic. Acnologia was a dragon slayer too, who turned into a dragon because he overused his dragon slayer magic. ... If we see the fights between all the dragon slayer and Acnologia, he is overwhelmingly powerful.