Mage leveling?

Hey guys I was wondering what you think is a good leveling spec for mages in MOP servers? I hear that frost is normally good for survival but I hear it is negatively bugged compared to fire and arcane so I don't know if I want to level that way.

I'll be leveling with some heirlooms so my stats should be pretty decent throughout leveling, does this make fire or arcane more viable as I think they are more stat dependent?

Thanks.

Honestly, since cataclysm leveling is a joke. You can level fast with any spec.
In normal conditions I would say go with frost, requires less setup and stuff, more of a straight forward spec, but if you're sure it's bugged well better go with something that isn't really. I'm not sure how bugged it is though.