Decent Warriors are my hardest fight as a Mage, well, other than a Ret Pally who's freedom i can't steal :P
Decent means they can spell reflect every cast of 1.5 secs or greater, know when to spin out of snares/novas and catch the Mage with his pants down if/when blink is on CD. Its practically impossible to keep them off you now, or snared.
And its only possible if i have full CD's and cold snap, which come back WAY longer than his charges and intercepts do. Then again most Mage CD's don't seem to line up with most melee classes these days, and only in full CD dueling do i really have a chance against competent Warriors.