Baby Night Fury or maybe Toothless as a baby ? It would be awesome to find another Night Fury (though my heart still wants it to be just Toothless) but it would be cool if the only way to distinguish a female was by her blue eyes :)
How to Train Your Dragon always makes me feel so fuzzy and warm. With Hiccup and Toothless both losing a leg/tail on the same side, and overcoming the handicaps by simply being there for each other. That's amazing.