Stiles and Isaacs relationship always made me so happy. I always got the feeling they were kind of fighting over Scott's attention and rights to be his wing man. And I always thought there was a little extra tension between the two because of Scott. And I think Isaac moving in with Scott definitely amped it up for Stiles a little bit. Of course it would have only been fair for Stiles to take to Derek the same way;)
Luke. Always ready with a grin and a joke. Dark hair and blue eyes. Knows he's cute and uses it to his advantage. Beneath all that, he's a deeply perceptive, caring kind of guy. And he has a knack for seeing exactly what Grace is trying to hide.