After viewing the presentation on the 7 1/2 habits, I realized just how much of a lifelong learner I am. I hope that we all are! I really do find that I am always trying to learn something new and preferrably fun and/or interesting.
My answer to the question about what is the habit listed that I find easiest is "Viewing problems as challenges". It's almost a life philosophy of mine. I believe that people can do anything with the right attitude and maybe a bit of hard work.
If I had to pick something that I was not very good at I would say the "playing" part. I really need to learn to take a break once in a while or enjoy something instead of continuing to push myself.