This is my personal top 10:
1) Lelouch
2) Li xingke
3) Euphemia Li Britannia
4)C.C
5) Kallen
6)Nunnally
7)Kyoshiro Tohdoh
8) Shirley
9)Suzaku
10)Guilford
1-Lelouch! little cliche of me but what can i say? he's the eternal fave!
2-Nunnally! A strong principled girl who's hopeful outlook on life isn't seen as naive but as strength!
3-Cornelia! just...freaking strong, strict, loves her sister, gives lelouch a run for his money in ep 7
4-Akito! i actually love my akito kids lol. stoic but caring!
5-Shirley! there to bring lelouch his humanity and reaffirm that love is power!
6-Yukiya, smart snarky guy who loves his friends
7-Rolo, actually a tragic character who wanted to be lelouch's brother for real
8-Lloyd, funny earl of pudding!
9-Mao, another tragic character whose love was his downfall and a victim of not knowing right from wrong
10-Kaguya!! idk why but i love her a lot asdjkfnas
i love so many characters from code geass and hope that i like the new ones in the upcoming movie!!!