Keep putting off writing a top 10 as it seems to change almost daily depending on how I feel but as a start point.
1) Helix, Liseberg
2) Mako, SeaWorld Orlando
3) Nemesis, Alton Towers
4) Montu, Busch Gardens Tampa
5) Wodan, Europa Park
6) Balder, Liseberg
7) Oz Iris,Parc Asterix
8)...