Define "best" and i can give some opinion

If best is in term of gameplay (at least in movie block where i'm most familiar with) i would go with
Sam, SoH. He is one of the most common (if not the most) splash in decks. He is the supreme counter to corruption and burdening (keep him alive and give him healing and your opponent will have to add like 5 burdens per site to get you) and allows some decks to abuse "add a burden to...". I think that EVERY one of my non-shire decks have at least one copy of him.
Sam, GEW may be the best in hobbit decks but not close to flexibility of aplication as SoH.