Kakashi vs Obi Wan Kenobi

VS

Both have full knowledge of the other.

Obi Wan is Revenge of the Sith. Legends.

Kakashi is Pre Time Skip. Manga and Anime.

Death or KO.

Battle in a large forest.

Obi Wan, maybe.... I am not sure what pre time skip Kakashi feats are.

Pre Shippuden or Pre The Last? I don't know feats for Obi Wan but almost all the time, Kakashi can have a decent argument made for him.