1) Destruction is weak. At the start, it is almost too powerful, but at higher levels you run out of magicka, and I don't want 100% reduction.
2) There doesn't seem to be enough perks for what I want. If I wanted to use all schools, the build I have ended up needing 67 perks. That is not feasable.
3) Obviously I need to cut out a skill, but I don't really want to get rid of Illusion because of the sneaking benefit. I don't want to get rid of alteration if I am wearing robes. I don't want to cut conjuration because it is awesome. Here is the part where people tell me to cut destruction because it svcks. At that point, I no longer want to play a mage. If I cannot cast destruction spells, I am no mage.
Help? Thoughts? Criticism? Skyrim is the only Elder Scrolls game I have not been able to play as a mage, and I would really like to.