Originally Posted by
Maxweii
Unholy and Frost are very close, in a sense where saying that doesn't have a hidden meaning, they are very close. Just Unholy has the toolset to shine brighter in more situations, so it will likely be used more, but they are close nonetheless.
And yes the Frost nerfs were warranted because the scaling it had was excessively high. If left alone it would have quickly became a problem, and needed to be addressed later on in the expan. Coming out of the gate level and balanced is better than coming out broken as you're less likely to feel 'nerfed' then as you never played it when it was broken in live.