By my standards all but the last one are actually
Arcane builds, but besides that I'll give you my opinion on each spec.
First Spec:
The Greatest Mage Post Ever Second Spec:
The Greatest Mage Post Ever Third Spec: Why did you make a build for a 68?
Also, even though i told you a little bit for the first one, all of these are in the post mentioned twice and just to make sure you go there, look through those specs and than realize that you just slightly tweaked them for the worse ill link
The Greatest Mage Post Ever one more time.