Favorite guy character is Edward for sure! then tie between Alice and Bella!
The reason the Twilight series works so well is because every character is so well written! I loved Jacob as soon as I read New Moon (and that was before I saw Taylor Lautner with his shirt off!) his character is so passionate, he is 100% enthusiastic all the time. I know he has a bit of temper, he tries to wind the vampires up, he keeps pushing Bella for more than friendship but look how caring he is, he looks after his Dad, he picks up the pieces of Bella's heart when Edward leaves. He tries not to, but he does care for the other members of the wolf pack. In the midst of trying to deal with the issue that's been thrown at him (we don't all wake up finding out we're werewolves!) and be in love with someone who loves someone else and be a teenager (days I remember vaguely, from way back when I was one ;-D) Don't forget Edward had nearly a century to get used to what he is, Jacob's barely had 16 years to cope with being human without all the other stuff on top! Gotta love that boy.
I also think Alice is fantastic, her story would be fabulous to know more intimately. Anyway that's just my opinion!! And Charlie - how did someone so calm, introverted fall in love with the whirlwind that is Bella's mum? How has he survived all those years barely seeing his daughter to haver her move in age 17? He's an interesting character but one that is barely thought about!!