I love Haruki's route and I think its the best, but I'll have to replay it to give more detail since it's been awhile, I have also been really enjoying Keisukes route so far, if you want more detail about that then ask and I will.

My personal favorite is Jun's. I will do anything for that adorable tiger. I have medical complications the same as Jun and it's rare to see a story that just gets how it feels. Sometimes you're just in a ball of emotional and physical pain and seeing that represented so respectfully and thoughtfully is incredible. Definitely my personal head-canon, canon route.