When do you give a series a 9 or a 10?

10 Blind fanboyism, Nostalgia
9 Distinctively enjoyable throughout, Objectively great

^ something like this, barely have 9's and 10's tho

 

MMMM only give those score to series that have made me,I don't know how to describe it but 'shiver' with emotion.

 

When I want to watch it again someday.

 

Typically it has to be extremely emotionally provocative or powerful in some way. Even if I can't explain why, like with End of Evangelion, which I give a 10. I gave Clannad AS a 10 because I connect with it really well in a lot of ways, not because "uguuu saddest animu T^T". If it consistently manages to grab my attention and keep me involved and invoke some sort of reaction, whether it be from testosterone hype or genuine plot intrigue, it usually gets a 9 from me, like Hajime no Ippo, JoJo, or Kara no Kyoukai

 

I only give out 9s and 10s if I really enjoyed them and I think they're objectively deserving of said scores.

 

9: If I enjoy it, and it holds my interest.
10: It is that amazing where I would watch it again.