I reckon this'll see me out for 2021.
1. Steel Vengeance, Cedar Point
2. Taron, Phantasialand
3. Zadra, Energylandia
4. Fury 325, Carowinds
5. Dinoconda, China Dinosaurs Park
6. Lightning Rod, Dollywood
7. Boulder Dash, Lake Compounce
8. Skyrush, Hersheypark
9. Voyage, Holiday World
10. Top Thrill Dragster, Cedar Point
11. Helix, Liseberg
12. X2, Six Flags Magic Mountain
13. Wildfire, Kolmarden
14. Untamed, Walibi Holland
15. Hyperion, Energylandia
16. Montu, Busch Gardens Tampa
17. Storm Chaser, Kentucky Kingdom
18. Formula Rossa, Ferrari World Abu Dhabi
19. Soaring with Dragon, Hefei Wanda Theme Park
20. Nemesis, Alton Towers
New entries for 2021 in bold. Zadra's brilliant, but coaster isn't a good as SteVe and 'experience' isn't as good as Taron/Klugheim. Hyperion is great, but the drop, first hill and turnaround are the best bits, the rest isn't actually world class.