I like Little Gray, too. At first I was seeing her only through Meredith's eyes, but she came to stand on her own as a character and show some spunk as well as deep compassion and sensitivity that we don't always see in the other docs, although I know it's there. I like that she's involved with the least likely man I would have thought, and that she has brought out his softer side, too.
Hope they get back to the Yang-Hunt relationship soon, too. Very interesting duo!