What's your build?
I've found that Wizards are awful to play as because I have to use a build like this to be effective at all. http://us.battle.net/d3/en/calculator/wizard#iYXTSj!YXa!ZZZZZa
One attack, 3 passives, and 2 oh !@#$ buttons. Sorry but that isn't very fun. Not to mention the fact that to kill anything I have to run around for awhile since my only damaging spell is a channeled spell.
Also, most of the Wizard's attacks just don't do enough damage for their cost. Meteor's damage should be doubled AT LEAST. Same with Blizzard. They don't do enough damage for stationary attacks that require nearly half of your resources. Slow Time and Teleport are jokes. Wave of Force is useless in most situations and Energy Twister is never worth casting over all of the other damaging spells in the Wizard arsenal. Hydra is good but only on bosses where it can live out it's full duration. You simply run around too much for it to be worth a spot on your bars. Ice Armor's freeze has a CD which is awful considering there are so many enemies in this game. Explosive Blast is the same as Energy Twister. Mirror Images doesn't even work. Most of the mobs ignore the Mirror Images and simply attack you anyway. Archon is cool but you lose access to your defensive abilities (which means death). Signature Spells are awful...
As far as passives go some are just too mandatory while others have little use at all. I also find it weird that instead of Glass Cannon putting us above all the other classes in damage at the cost of being squishy it puts us ON PAR with the other classes while making us squishy. Illusionist is useless because MI and Tele are useless.
About Teleport. It is sad when something like Leap is directly better in every single way. Lower CD, same range and can jump up/down stairs/cliffs or w/e. Why can't Teleport go through walls? Why does it have such a long CD when it has a very short range and can't go through walls? It should have a 6-8 second CD with Archon giving it no CD, if you have the rune, if you kept it with no ability to go through walls or up stairs or pretty much anywhere that isn't a straight line with incline or well, anything in the way. (Sounds like Blink from WoW >.>) I wouldn't mind giving it a 20-30 AP cost with no CD either, with Illusionist removing the AP cost for a bit.
Another problem with Wizards is snares lasting at most 3 seconds. That is absolutely nothing. Blizzard should at least slow them enough to do it's damage instead of them running straight out of it while taking very little damage. Why not have Blizzard follow a creature if you cast it directly on them?
Basically Wizards are fine. But only if you use a very specific set of abilities and ignore 90% of their toolkit because all of it is useless.