Quote Originally Posted by crowdx View Post
Well I ran arcane last night and did over double the dps. As you said the only issue is mana. Overall I am happier with arcane as it helps with the shorter fights and I have actually cleared quite a few dungeons now, at or near level, while leveling this new team.
And with my mage as frost, my team was clearing dungeons in northrend as high as 4 levels above them, but our results will of course vary

Just use what you feel is easiest/best for you and gives you the synergy you want in your team without taking too much of your attention to manage.