Any animal as a mount.

[Jedoro]

Flying Shark, because it's the closest I'll get to a Flying Tank.

 

[moretimethansense]

Selepnir, if it's good enough for odin it's good enough for me!

 

[El Poncho]

Turtle, it will be so fun! and awesome!

 

[ThreeWords]

a snail!!!!! just smothers everything in its way and can climb walls!!!! or a cockroach. a next to invincible giant scary bug.

Cockroaches can survive nuclear bombs. Unfortunately, you can't, so it won't do you much good when the bombs start falling

 

[Kiju]

Yup. I win.

Dammit. Beat me to it! D:<

 

[irani_che]

Torosaurus.
Something like in Dino D-day.

That or the big lizard thing in revenge of the sith. What is that called?

edit- found it, called varactyl,

 

[AVATAR_RAGE]

Yup. I win.

This!

Or a Utahraptor

 

[VivaciousDeimos]

I will stick with the classic. Wolf.

Agreed.

Spoiler: Princess Mononoke already showed us how utterly awesome it would be:

 

[Ouroboros0977]

Probably a sabre-tooth tiger.

 

[Sajuuk-khar]

A pterodactyl.

Selepnir, if it's good enough for odin it's good enough for me!

Sleipnir?

 

[Voodoomancer]

Guess.

 

[moretimethansense]

A pterodactyl.

Selepnir, if it's good enough for odin it's good enough for me!

Sleipnir?

Are you having a go at my mistype?
If so then fair call, if you're asking whatSlepnir is then
http://en.wikipedia.org/wiki/Slepnir
there you go.

 

[John the Gamer]

Dragon.

 

[Bloodstain]

A giant White Plume Moth. Hell yeah, I'm king of the world.

 

[Torrasque]

A really big Guilmon

Spoiler: This guy!

 

[GrizzlerBorno]

Spoiler: Armored Bear

What? he was pretty interesting characters in the Book trilogy. Also, didn't have completely gay golden armor.
But yeah, he's not just a dumb bear, i can talk to him.

Massive Edit: Actually, fuck the Bear. I want this guy,

Spoiler: Toothless

That was a damn Good movie.

 

[ConnorTheRed]

Praying Mantis.
Those things are freaky enough little, so one horse-sized should be sufficiently scary/awesome.

 

[hutchy27]

A Giant Battle Tortoise of course