Who do you think will win tda and why?

Hard to say, really.
I HOPE it'll be Beth, but it might be Duncan, and he'll get back with Courtney, they'll split the money, blahblahblah ='__'=
But its just my opinion. That's why i want Beth to win ^_^'

If you look at Duncan's page on Total Drama Wiki, there's OBVIOUS proof he's going to win; just look at his litrato gallery at the bottom of the page.