To be honest, my least favorite character is Katniss, Just saying. She is so indecisive, a little insensitive and is hard to relate to. But she isn't unloving. Just cruel.
Favorite characters are Haymitch, Rue and Peeta. (OH AND CINNA)
Haymitch because he is cunning, smart and reminds me a lot of fox-face
Rue because she is the link that causes the series to grow amazing.
Peeta because despite all the s**t that Katbitch does to him, he prevails and fights for her, because he genuinely loves her.
Cinna, because his love and respect for Katniss is pure, the only 'Capitol' citizen to seem 'real'. One who is easily respectable and lovable.