Alright, here I go:
1. Lost Desert
2. Meridell
3. Krawk Island
4. Shenkuu
5. Mystery Island
6. Roo Island
7. Haunted Woods
8. Kiko Lake
9. Kreludor
10. Brightvale
11. Terror Mountain
12. Tyrannia
13. Virtupets
14. Moltara
15. Faerieland
16. Altador
17. Maraqua
18. Darigan Citadel

I meant to post them in order from which ones you like the most BTW.