I don't regard Rem as the best girl She just loves Subaru because he saved her which happens in almost every anime, boy saves girl and then girl falls for boy. So if we look at it that way then we can clearly see Rem is too mainstream. She even killed Subaru because she was suspicious of him even though she had 0 proof As for Emilia, I haven't seen any female character as selfless as Emilia. She saved a complete stranger and made sure to tell him he owes her no debt. No girl would do the same thing Emilia did (because in addition to helping the stranger, she made sure that he doesn't feel indebted to her). Rem murdered Subaru two times, but Emilia always cared about him. When Subaru was killed by Rem, he wanted to gain her trust so he worked very hard even though he became sick afterwards. He was broken from inside. He wanted to cry but he couldn't. He couldn't even tell anyone about his problems. No one cared about him since he tried to hide all his misery by putting a pathetic smile on his face so as to win Rem's trust. Even Rem didn't care about him at all. But Emilia saw thru that facade. She forced Subaru to sleep on her lap. She didn't question him or his motives (while Rem killed Subaru for that). She just provided him what he needed the most and after all the love that Emilia showered, Subaru then started to cry. That scene was beautiful <3 So we can clearly see that Emilia here is the IDEAL GIRL! Anyway, what do you guys think about this?