The Swarm is my favourite themed coaster that I've ever encountered, despite it being in Staines-upon-Thames of all places. Considering it has an entire area of the park to itself (even though you could argue that Sonic Spinball does too haha) it is amazing how small the pathways seem because of the giant scenery. Saw is probably my second favourite (again despite it being in Staines), the theming gives it that scary feeling that leaves it being the ride in Thorpe that virtually everyone screams on. Unfortunately, despite how much I love it, I would not call Nemesis a good themed coaster. It's story is good and all, but I don't think there's much else too it despite it being in a pit.