So many characters. I've probably missed half of them.

Love: Ned, Varys, Bronn, Davos
Really like: Jon, Margaery, Tyrion, Sansa, The Hound, Olenna, Grenn, Eddison
Like: Mance, Selmy, Arya, Stannis, Oberyn, Jaqen, Grey Worm, Gendry, Robb, Brienne, Aemon, Shireen, Pod, Hodor, Jeor, Ros, Syrio, Tormund, Beric, Osha, Yara, Pyp, Hot Pie, Benjen
Meh: Dany, Myrcella, Daario, Roose, Robert, Jorah, Missandei, Gilly, Mace
Excellent villainy: Cersei, The Mountain, Joffrey, Ramsay, Tywin, Alliser (not quite a villain, but similar), Pycelle
Ugh: Tommen, Lancel, Renly, Loras, Rickon, Catelyn, Viserys, Shae, Walder, Janos, Olyvar, Talisa, Lysa, Robin, Balon, Selyse, Hizdahr, Styr, Orell

Varies: Baelish (meh/excellent villainy), Jaime (like/meh), Drogo (like/meh), Ygritte (like/meh), Melisandre (excellent villainy/ugh), Theon (meh/ugh/excellent villainy/like/oh god what next), Bran (like/meh/ugh), Samwell (like/meh)