European

Facts:
European: Pwns all others

Frost(Arctic): ... Cmon! It's weird and frozen, and... Arctic? What a weird noise!

Lung (Chinese): ... Lung? Lung?! Yesh, I love those dragons that are named after one of my vital organs [/sarcasm]

Lung(Asian): Ahhh, but I like these more! Because China is in Asia!! So basically, they are the same! *gasp*
Wyvern(African): .... Ok, you've seen a wyvern, right? When have they been african?! They just aren't, no matter what their roots actually are

Major error on the continentalness
Am.Ampithere(North American): Hmm... Ampitheatre? Never heard of a dragon named after an outdoor stage O.o
Mex. Ampithere(North American): Ohhh, Mexican ampitheatres are way awesome

Lindworm(Asian): Yesh, because we totally need a dragon named after a worm! It would be so cute... All pink and long and leg/eye/ear/noseless...
Tibetian(Asian): Tibetian... Tibetian... I like that name... But, European is still better

Knucker: Knucker?! Ok, sounds like 'knuckle' or... Other things. The Knuckle Dragon!!!! WHOOOO! Run for your fricken lives!
Marsupial(Australian): Err... Aren't marsupials like kangaroos and wombats and stuff? How the heck do you get a dragon from a kangaroo?
Cockatrice: Sooo... This dragon is serpentine, and came from a chicken's egg, and can kill from a glance. Can you say... Basilisk from Harry Potter? Yes, I think you can say that! So now, think of how toady and horned it looked in the movie. I don't think we need a toady dragon

Gargouille(French): Ugh... Reminds me of a kid's French name from French class... 'Guillaume' or something.