There can be no question that a world without Saddam, Uday and whasisface (other son) is unquestionably a brighter place to some significant degree.
It is simply inarguable that he was a rotten bastard, a horrifically tyrannical despot, and at least a potential threat to the security of his neighbors. Not to mention genocidal towards the Kurds.
Whether the war itself was worth it is going to depend on larger issues, though... issues that will not be easily answered today, this year, or next year. The question will be whether something better than Saddam grows to fill that hole left in his absence.
I hope it will be so. We'll see, over time.