He's the only real celebrity crush I've ever had. I read an interview he gave to mental_floss magazine (back when they still printed hard copies) and was smitten with his intelligence - brains are a must if I'm going to be serious with a guy. He also seems genuinely friendly, kind, and sweet. I agree that a natural body is more attractive than a ripped one, but his intelligence and personality make up for that. I'd still do things to him.
Funnily enough, I don't even follow him as an actor. I'm a Potterhead and I saw Woman in Black, but nothing he does strikes my fancy. If I want to gaze at his hotness, I'll come here.