I vote for having a tamed raptor as a pet/mount.

1) Its possible tame a raptor (We all tamed them as beastmasters several times in FF XI) So they can be friendly.

2) Raptors are built like a chocobo, minus the feathers and reminding people of KFC.

3) There are different sized chocobo for each race and the same could go for the raptor breeds.

4) They're just as fast, if not more so, than a chocobo. They put the velocity in velociraptor.

If they become mounts cool, if not, no big deal. I'm very content with my chocobo. But this is just an idea for anyone throwing around suggestions that are believable out of the species living in Eorzea. Drakes would be cool too perhaps. Either that or just adding in other FF creatures or creating cool new ones to act as believable mounts.