While I'm all for open play, it's possible that the DM is unfamiliar with or dislikes the flavor of, Psionics and Maneuvers/Stances. Does he even have those books? Maybe he's looking to challenge you in your character crafting abilities? If he's said that these are overpowered or whatever, then yes, he could stand to be shown the error of his ways.
As far as how to scare him straight, try having the entire party playing fighters and monks and paladins (oh, my!)
They're also brokenated; the wrong way mind you, but they're less than functional classes against equivalent CR stuff. Play them right and they will still die.
Anyway, if you're looking for optimization that makes him reconsider ToB, XPsi and SpC bannage, lowballing to show that for melee ToB is much better (I'm not familiar w/ it, but that's me), and then showing that most of the broken spells already exist in Core (+Completes) might get you most of what you are looking for.