The idea of a massive, brand new Intamin hyper in Europe just a short flight away outweighs my curiosity for what Vekoma's take on a hyper coaster would be like. Plus I do think the Intamin layout looks better. So the Intamin swings it for me.
Taking the ride experience out of it, I think the park would be sensible to go with Intamin. They obviously have a good relationship with Vekoma but when it comes to rides of this type on this scale, Vekoma is a completely unknown quantity and Intamin have a lot of experience.
Still, what an odd way to decide on a coaster model. I'm always a bit uneasy when organisations throw open their decision making to the public. It gets a good deal of publicity but I still don't think it's the best idea. I've done a lot of product design work, much of which has involved user research. I quickly learned that whilst you should listen to people's feedback and factor in their responses to your design choices, you shouldn't ever let them make design decisions, particularly not as a large group. That's how you end up with frying pan-pedometer-alarm clocks.