1. Desmond (His ability to go back in time and his connection with Libby)
2. Libby ( Why was she in a mental institute w/Hurley? and why did she automatically give her boat to Desmond?)
3. Miles (His ability to whisper to ghosts?)
4. Ben (His access in and out of the island and why is he so important and "Dangerous"?)
5. Charlotte ( Her understanding on Dharma)
6. Abbadon ( Why wouldn't he intrigue you?)
AND
7. Richard Albert ( he doesn't age...)
I hate the "love triangle" between Kate, Jack and Sawyer. Its very boring, over-used and overrated. Thanks for reading....