In my opinion, character selection is related to class placement. As for Lelouch, class B is really suitable for him, with him there it's good for competition between classes. if it's oreki, put him in class c and be second in command. You can also move Koenji to another class, I think it would be good if Koenji could compete with Ayano.

Option 3

Option 3 is a good choice, for option 5 please don't choose it, I think this is a bad option