Think of it like this: If theme parks were movies, then coasters are like the trailers for those movies. They're the draw, they're the best bits, the selling point, they are what makes us part with our cash and venture out to these places.
Coasters are to theme parks are what dinosaurs are to Jurassic Park. When you go to watch a Jurassic Park movie, what you wanna see is dinosaurs eating people, ie those bits that were teased in the trailer, correct? But if you get there and literally all you get is dinosaurs eating people for 2 hours, or it's one of those films where the only good bits are in the trailer, you're gonna come away thinking it was a pretty sh*t movie, right? That's where all the other stuff comes in. For a good movie, you need to care about the people being eaten, so you need a good story (or good theming), you need a great cast (or well trained staff), you need slick editing (or efficient park operations), you need a quality soundtrack (or good ride music), you need some cheap laughs (or some dodgems and a hook-a-duck) and, crucially, you need a talented director in charge like Steven Spielberg (or Roland Mack) and not some overpaid chump like Michael Bay (or Nick Varney).
And all of that needs to come on top of the amazing dinosaurs-eating-people scenes.
Basically, to cut a long story short, I voted for the middle one.