1. The open sexuality, but moreso the fact that he's can balance the line between good guy and being badass for the right reasons.
2. Tough one, I have more of a problem with his fellow characters and how they react to him.
3. The Doctor and/or The Master; the real Jack Harkness
4. I could ship him with anyone...but off the bat Methos
5. Jack/Ianto
6. Nightingale Sang in Berkeley Square *g*
7. "My Life, The Universe, and Everything."
8. Reliving being killed again and again by the Master
9. He's immortal...*g*
10. That's a silly question! Of course! :D