Since this is your 1st post - welcome to the Reborn forums!
I can respect commitment and time you put into finding all of this.
I've read the whole post but I'll comment on the differences. They seem to be correct. I don't have that many save files although I checked most of the points and it's just as you wrote. Those about Fern, Blake and Hardy caught me by surprise.
If your aim is to acquire as many points with everybody as possible you should know 2 more things:
1) you can get 1 more point with Terra if you interact with the tombstone in the south of Lavender Town
2) this is a bug (and it's been reported to the devs) but you can get +2 points with Titania if you read the diary (instead of -2) and when she asks if you were reading her diary say 'no' (you'll get +1 instead of -1). So basically: Read diaries -> Lie -> Make Friends. This doesn't make sense but it is what it is lol.