In honour of the Chinese New Year, my Top 5 Greatest Dragons Of All Time:

5 Spyro
4 Falkor from The Neverending Story
3 Smaug
2 Puff (legalise it!)
1 That one St George killed (Brits at it again)

Honourable mention to King Ghidorah who was ruled out on a technicality for having three heads.