I originally thought ToTT was the best, but I agree with The Sky Sailor, it does need a new storyline. The acting and actual areas in ToTT are amazing, but the story isn't very clear, and I can see it confusing a lot of people who are doing the maze for the first time, which I can imagine is a large number of people.
If Sub Species was on this poll, I think it would be one of the scare attractions with the most votes, as it was genuinely incredible. The story, the theme, the acting, the costumes, etc. You knew what you were doing in there, and it genuinely did feel like a race with loads of aliens in a sewer, which is what it was supposed to be. With ToTT, everything looks good, but it doesn't quite fit with the story as well as some of the other scare attractions. Maybe this year they give it a new story