Harry, the Bigfoot from "Harry & the Hendersons," and Chewbacca from Star Wars are brought together by outside forces to do battle with each other. The fight takes place in a forest environment and neither is allowed to use weapons except for natural ones they may take from their surroundings (sticks, rocks, etc.) Who wins?
Size/Strength: Harry is slightly bigger and possibly stronger than Chewbacca.
Demeanor: Both are well mannered most of the time but can be sparked to angry outburst, Chewie much more easily so. Harry normally chooses to avoid conflict and will only fight when absolutely necessary, usually to save someone else from harm, whereas Chewie is a veteran of many conflicts.
Feats: When it comes time for action, Chewie is not shy about deadly violence whether with weapons or his bare hands, including being rumored to rip peoples' arms out of their sockets. Harry will chase, grab, disarm and intimidate an enemy with scary expressions and vocalizations but has never been shown to actually injure anyone. But what if he found himself attacked with deadly force by a similar non-human enemy?