[Kitanna]

Bilbo is quite the corrupted, yet uncorrupted character.

His possession of the Ring for six decades left him accusing Gandalf of trying to take it and in Rivendell a strange shadow passes over him as he contemplates getting it back from Frodo. From the very beginning he lied about it and his "winning" it from Gollum. Yet he manages to overcome its hold by giving it up as Gandalf requested.

Even though he knows it's evil he still longs for it in a childlike manner. And in that childlike manner I say he's uncorrupted. Because children can be easily swayed by what they want, they even resort to throwing fits, but they're never moved to a state of true violence. Bilbo's accusations and his lying from the beginning make me think of him as a small child hoarding some secret treasure he's not supposed to have. As for children (at least when my siblings and I were growing up) our treasures corrupts us, makes us act out, but after a time we were taught or came to realize we shouldn't keep it.