I would love Alex to win - I have supported her since her audition, and if talent is the measure, she will walk it.
JLS will win - simply because their fans are of an age and pursuasion where dialling in thrity times in a night is they way they vote, so they will overwhelm the others.
JLS are average, but they will need some killer songs to survive - rememebr One True Voice and their dire records?
Owen will simply disappear - he is a novelty, and once he is no longer in the nation's living rooms, he will be forgotten very very quickly.