Just an fyi, the Paladin he was refering too had said he outdamages Wizards against group mobs. There is no doubt that Wizard AoE at this time is truly pathetic. Way back during the first month of release the fiery pulse line was actually good. It didn't do all that much more damage than it does now BUT it had a 2 second cast and like a 10 second recast. Back then botters used to use groups with 5 wizards so they nerfed it.
From my experience when grouped with other more able AoE classes our dps is at the pathetic level. Sure you can try to hit one target with Ice Comet (assuming the mobs stay alive long enough to cast it), but you will often end up killing a mob with less than 2k HP left. Compared to a Warlock we dish out less than 50% of their AoE damage. The numbers are not much better compared to Conjurers and Necros.
Against single target encounters we dish out maybe 10% more than a Warlock and will get out dps'd by a Conjurer or Necro (and I mean out dps'd even when you hit for 5k+ with Ice Comet, 2500+ with BoI and 2200+ with incapacitate. Their pets just dish out that much damage in the amount of time it takes to cast off all those spells.
No one is saying the Wizard class is not fun. I got my Wizard to 60 and had fun doing it. The problem is, there is just no excuse for these major discrepancies in the dps numbers. All the other mage classes (except coercers and illusionists - those classes are truly pathetic and should be revamped) put up VERY good AoE numbers AND 2 of the classes will out damage Wizards against single targets even if we put up close to max numbers. So where does that leave Wizards?