My updated list after my recent Heide/Hansa trip:
1. Taron, Phantasialand
2. Taiga, Linnanmäki
3. Untamed, Walibi Holland
4. Helix, Liseberg
5. Oz'Iris, Parc Asterix
6. Balder, Liseberg
7. Lost Gravity, Walibi Holland
8. Der Schwur des Kärnan, Hansa Park
9. Nemesis, Alton Towers
10. Joris en de Draak, Efteling
11. Colossos - Kampf der Giganten, Heide Park
12. Goliath, Walibi Holland
13. Troy, Toverland
14. Black Mamba, Phantasialand
15. Hyperion, Energylandia
That's my "Top 10% of ranked rides" (ie creds ridden ignoring kiddie/little junior ones).
I think positions 9-13 are all very fluid; very much depends on my mood. Joris feels like a bit of an outlier on a first glance I think, but then I remember I have so much damn fun on it from start to finish that it really does deserve that spot.