Not to start with the sweeping statements but I have said it before, and strongly believe Mages don't need that much of a buff IMHO. I think they are one of the most powerful classes in PvP.
Like all classes, certain builds work better in PvP than PvE as some skills simply won't even work vs. another player. Ice is the ultimate PvP spec. Not the ultimate damage or dueling spec, but the ultimate spec for PvP as we see it implemented through Bg's and team-PvP in WoW. Any mage worth his salt can eat rogues for dinner. My rogue has awful problems with them, and my mage has no problems with them
. I can take you through the steps and it is hardly rocket science...the spells are all there. I just got off AB earlier kiting a rogue +4 levels to me. Even with the level difference the only problem I have is the odd "resist".