Here mah favorite characters:

15. Rose and Bernard 14. Man in Black 13. Jin 12. Sawyer 11. Frank 10. Richard 9. Eko 8. Michael 7. Ben 6. Hurley 5. Daniel 4. Charlie 3. Sayid 2. Locke 1. Miles

And my least favorite (1 being most hated):

7. Jack 6. Alex 5. Shannon 4. Anthony Cooper 3. Ana Lucia 2. Kate 1. Keamy