My top 10 is more toy lines than individual toys. And both wishlist, and works in progress.
1: Complete Bandai/Popy Godaikin line (It'll never happen)
2: Complete Bandai Soul of Chogokin Line
3: Complete Yamato Macross 1/48, 1/60 (including Monster whatever scale that is)
4: Complete Takara BinalTech Transformer Line
5: Complete Takara Collector's Series G1 Re-Issue Line (probably won't do this one)
6: Complete Bandai/Takatoku Macross 1/55 Line (again, it will never happen)
7: Masterpiece Convoy Optimus
8: Chogokin Metal Material Model Gundam Seed figures
9: Gundam Fix #13 Deep Striker
10: Mazinger AD 1901 Line