Final answer:
Barrie's favorite Llewelyn child was Fay. Fay is described as being dearer to Jane Withersteen and Lassiter. Fay is portrayed as a shy, wild, and lonely child who becomes an answer to prayer for Jane Withersteen.
Step-by-step explanation:
Barrie's favorite Llewelyn child was Fay. This is evident from the text where Fay is described as being dearer to Jane Withersteen and Lassiter. Fay is portrayed as a shy, wild, and lonely child who becomes an answer to prayer for Jane Withersteen. Lassiter sees Fay as a religion, and his interactions with her become increasingly gentle and loving. Little Fay's significance in the story is further emphasized when Withersteen's friends are mentioned, and it is stated that Fay was dearest to her.