I like on kill bill 2 when he is shown with the daughter (who lived) and he's acting like a nice dad while they are watching Shogun assassin.13 Assassins is probably the best one to come out in the last decade. Shogun Assassin is another great one that I think came out in the 80's.
Akira Kurosawa made the best samurai films back in the 50's/60's imo.
Seven Samurai
Yojimbo
Sanjuro
Ran
Hidden Fortress