Oh I like how OBI-WAN was characterised. Especially in the book versions of the movies. Anakin on the other hand...
Back to Obi, though. I think there are facets of his personallity that weren't explored. Actually, I think he wasn't explored very much, full stop. I think the movies focus too much on the Chosen One, exploring every little facet of his one-facet personallity. I'm sorry to anyone who likes Anakin, but I really don't like him, and my opinion won't be changed.
The books are so much better, because they are able to explore what every character is thinking.