Originally Posted by
Pyromelter
Without deep freeze/shatter, I'm a little worried that as the levels go up and the crit strike rate goes down, fire may not level as well as frost. In MoP, I found (and I think others did as well) that fire was able to keep up due to being able to force hot streak's via shatter, and the raw damage fire did made leveling just as effective as frost, while killing things a little faster than frost.
A bit worried that 90-100 will be "everyone back in the frost pool!" for leveling.