I definitely relate to ol Pooh, so I think you might be on to something.
I agree with most of your assessments of the characters, except for Rabbit. I say ISTJ. He doesn't tend to like being disturbed, and definitely has a strong belief in doing things the traditional way. regardless of whether it's the most efficient way.
One of my dad's nicknames for me was "Mr. Roo", so I'll always feel a strong connection to a certain little kangaroo as well.
