I like the show way to much to do a list like this, and in general I'm not much of a list guy because my subjective choices are too guided by my moods and temperments. Props for making this list though.

And the bias that I have for Lester being my favorite character makes me want to say the moment you have listed at 20 should be higher, but I don't know which of the prior ones listed should be moved in its place. Wish I had season three fresh in my head to add more to this post.