1: Mushu (Mulan) – 1m
2: Spyro (Spyro the Dragon) – 1m
3: Charizard (Pokémon) – 1.7m
4: Dragonite (Pokémon) – 2.2m
5: Toothless (Hot to Train Your Dragon) – 8.5m
6: Elliot (Pete’s Dragon) – 10m
7: Hungarian Horntail (Harry Potter) – 15m
8: Toruk (Avatar) – 20m
9: Shenlong (Dragon Ball Z) – 30m
10: Temeraire (Series by Naomi Novik) – 40m
11: Skyrim’s Dragon – 45m
12: Reign of Fire’s Dragon – 50m
13: Smaug (The Hobbit) – 60m
14: Drogon, Viserion, Rhaegal (A Song of Ice and Fire) – 61m
15: Balerion (A Song of Ice and Fire) – 76m

[Source: The Daily Dot]