Complex sentence: Tomoharu, now address Kanade by her name, still cannot decide if he should go for Kanade or Misao, implied by Misao that is it really harder to choose between her and Kanade than saving the world.
Split into simpler sentences: Tomoharu, now address Kanade by her name, still cannot decide if he should go for Kanade or Misao. Misao muses is it really harder to choose between her and Kanade than saving the world.