Who is smarter

[Totsuka No Tsurugi]

nah both Light and L is smarter than lelouch, note that lelouch always get outsmarted by his sister and brother in strategy fight,

 

[AikoLtu]

L..

 

[Coneth]

who is that?

Protagonist of Jojo's Bizarre Adventure part 2 manga. Outsmarted 4 10,000 year old super-vampires, one of which had an IQ of over 400.