Ok
Eomer, best, well it’s a close one between Treebeard, I love his line (amongst others): “My business is with Isengard tonight!…” and Éowyn. I guess the Shieldmaiden shades it on account of the fact that she does have more of a spiritual and physical journey across the films, and I feel that Miranda captures her Rohirric passion and humanity almost perfectly.
Worst, hmmm, it’s a close call between a few: Denethor, and eyeball Sauron were annoying and weak, but none more so in my mind than Gothmog the pigsy Orc, I still wince at his 80s horror make-up and laughable attempts at intimidation.