1. His beautiful
blue eyes (best seen in the Scarlet Letter)
2. His many wonderful accents (especially hilarious and The Fifth Element).
3. His
ability to play the
piano *sighs* and the bass guitar
4. He looks gorgeous with
longer hair.
5. He looks more gorgeous
with goatee (sorry guys, i'm more into one of those scruffy-looking guys)
6. His wonderful abilities to play
Sirius Black in the HP movies.
7. The way he portrays the
villains in his films.
8. His
song in the film "Dead Fish".
9. The way he looks in
Rosencrantz and Gildenstern are Dead. (especially the part where they are on the tennis court playing their 'questions only' game)
10. He made a film
about his own life. (And I heard that it's awesome, though I haven't seen it yet.)
11. He makes a great and
yummy Sirius Black!!! And I cannot wait to see how he looks in this next one. He should be a little more clean than PoA!!
12. He's a
good friend of Luc Besson (one of the best French directors and scriptwriters).
13. The way he looked in Dracula long black hair, those
piercing eyes that made you feel he could
gaze into your soul. That smile mischeivious and mysterious at the same time.
14. His quote "We're given a
code to live our
lives by; we don't always follow it, but it's still
there." It's very wise.
15. He can
change himself completely to portray a certain character - like for Dracula or Immortal Beloved or Fifth Element.
16. He's
good at portraying the dumb guy (Rosencrantz).
17. He
looks like lovely when he is angry (myself)
18. He makes us all
19. He is
adorable 
20. In the film Léon - The Professional he plays a wonderful baddie.
(and he imitates a wonderful Austrian accent)
21. When he talks about Omar, his son, and Gulliver, Omar's friend, in the behind the scenes of
POA. *ish
very cute*
22. He
gave Dan a bass guitar and they played together.
23. Because he is a good father for his sons.
24. Because he's called "The Chameleon"
25. Because he was never nominated for an Academy Award although he totally deserves it
26. Because he risks his carrier by playing non ordinary characters.
27. Because of his great acting in Hannibal
28. Because he was strong enough to get over this "little problem".
29. Because he's a
hero at his son's school.
30. He played a great Sid Vicious in "Sid and Nancy" (kinda forgot it was him) 
31. Because he also portrayed an awesome Beethoven in "Immortal Beloved" and even played some of the piano pieces himself.
32. Because of the background research is does before portraying his characters. Makes him that much better!!
I adore him in Dracula. Have seen the movie like 21,755,387,125,845,587 times!!!! 
I loooooove it (and of course I love Gary