Ultimately, it is realism/prejudice vs game balance. It is not explicitly stated as such, but he has his views about overpowered, what doesn't make sense, etc. I would just like him to play the game as the rules states instead of blacking out parts of the PHB/DMG and writing stuff into it in ink because, to be honest, I don't think he really understands the fundamental realities of 3.5 as much as he should as I don't think he has had time to really analyse the game. I mean, he lets Shivering Touch and Ray of Stupidity through but makes all sorts of noise against Shrink Item + dropping it on enemies and the Explosive Rune bomb tactics, which are arguably harder to set up and waste actions. He even limited the damage of a Huge animal companion dropping itself on an enemy (Slipper of Spider Climb are great, btw, when coupled with a Animal Growth'd grizzly
). Stat damage vs hp damage and he has a problem with the hp damage...
All I can say is that he is learning now, with my wizard build based around stat damage and enervations (Split Ray, Empower, Arcane Thesis, etc.).