Wow. My favorite character was surely Shizune. That's why I took her route first. Sadly, I liked her route the least. THOUGH THAT DOESN'T MAKE ANY DIFFERENCE TO ME. SHIZUNE BEST.
In terms of route, I'd have to go with Emi as my favorite one. I don't know. I like how Hisao got inspired by Emi's effort in training him to be in a better physical condition. Hisao rarely does anything about his disease, but in this route he does. In some routes he had a serious attack, for example, in Lilly's route, but in Emi's? He tried to put his all into exercising so that thing doesn't happen to him again.
In generalization, I'd have this sequence (according to routes):
Emi > Rin > Lilly > Hanako > Shizune
But in characters?
Shizune > Emi > Lilly > Rin > Hanako
I don't know man. It's just like that.
Oh, why didn't I put Lilly as my favorite? Lilly's route did make me tear up, but it was something I've seen before. Hisao was pitiful in that route. I liked how he chased Lilly in that route though. I think his condition was the worst in that route? I don't really know anymore. But damn man. Put yer ass into working out so that you don't become a weak person physically. I mean, just because you have a condition that would severely hinder you from doing what others can do doesn't mean that you shouldn't do anything about it. I mean, look at the girls. Emi is a track runner with no legs. Rin is a painter with no arms. Shizune's the student council president, even if she's deaf. Lilly can navigate even though she's blind. Hanako has a trauma. I don't even want to talk about that. So Hisao, why the heck can't you do something to improve your condition? He even forgot to take his medication, if I remember correctly.
Also, worst ending was Rin's normal ending. It hit me so hard. It made me cry more than Lilly's ending could have ever made me cry. My god. Rin was so nonchalant about it that I just felt so sad that I just UGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGH.
You get my point.