Are you allowed to vote if you haven't voted in any of the earlier rounds, out of interest?
If you are, then my votes go to Blue Fire and Shambhala, based on what I've experienced! While Formula looks great, Blue Fire looks to have a little more to it, and that heart line roll looks insane! And Shambhala gets my other vote due to my love of Mako at SeaWorld Orlando, which I'd presume rides quite similarly!