I watch it for Sam Neil. For some odd reason, I've got a thing for him.
I love and adore the story line, but the blonde just doesn't really do it for me. I find her somewhat annoying. Hugo is Hugo (I know in the show he's called 'Doc' but he'll forever be Hugo in my mind especially since his character's personality is basically the same in Alcatraz as it was in Lost. That sweet, adorable, innocent cute guy.
I picked other on the poll because I watch it for the story and Mister Neil, but I don't love love the show, I like it. I wish they'd change the blonde.