Quote Originally Posted by Milskidasith View Post
The thing is, I honestly don't know if my group would get bored if he was overpowered, but I would be supremely bored. I'd either have to optimize encounters to kill him (though I could probably just slap high SR on everything and call it a day), or have everybody else gawk in awe as he kills everybody. And if he figured out that SR: No spells are awesome, then I'd be forced to play monsters that would kill the others instantly just to challenge him.

So, while my group may or may not be annoyed that one player is essentially killing everything for them, I'd find it to be boring and a huge hassle to deal with as a DM (besides the aforementioned SR thing.)
If all they do is watch him beat everything then don't you think they'll be bored?

If you do optimise to challenge him then let them all die against overpowered foes then tell them why it happened - you have to give them such foes to challenge the wizard.