The Outlaw Josey Wales is a heck of a movie, comparing it is like Filet Mignon and a big bone in Ribeye, how can you complain about one or the other?

Chief Dan George is a riot in it, as you said Will Sampson comes off like the real thing.

I'd have to go with Unforgiven as the best for one reason, Sondra Locke ruins every scene she is in. Thankfully, he got over that one.