I find Wyll to be a character with most potential - unlike other companions he feels better integrated into the world. Even if he didn't have tadpole he is active before you come, has his own agenda that potentially aligns with your. His "secret" is as easy to see through as with other companions but it works in the favour of the character here - he is a shallow fraud hiding behind thin veil of heroism. There are multiple compelling directions that character could develop towards. He is also the only character who makes sense to me as lvl1. Sure, he talks bit, but is clearly a small and incompetent individual, out of his depth when dealing with goblins, not to mention bigger threat.

One thing I am not clearn on - is he really a folk hero (has anyone hear about him? Or does he proclaim himself as one. Kids are all over him, but I guess kids can be manipulated into liking anything.