Saph, you didn't mention something that makes Specialist wizards even better. They are no longer prohibited from using wands and scrolls of their opposition schools. Hell, they can even craft those items, although at a -4 penalty. And if your party has two wizards with different opposition schools that's even better.
Ya I don't like that they can use prohibited items. I refrain from that with specialized wizards personally, but in a pinch at least you have the option.