The clear winner for me is the Dinosaurs/Jurassic Park mash up. I already have two Firefly/Serenity shirts, and there will ALWAYS be more of those. I never even thought of Dinosaurs being a shirt, especially not when it first aired and all I cared about were sneakers and video games. But I loved the show and it's a part of my childhood, and JP is one of my favorite movies, so I must have this. In fact, I bought it before I even started this post. Alright, now I have to start saving.
I have never seen this trailer. Makes me want to go back and watch it again for the first time. One of the best theater experiences. I still get goosebumps when I watch it.
Speaking of goosebumps, I got them while watching this fan trailer.