I will repost what I said in another thread:
I would say, put one point in each school. The way that you can increase your chances to have lots of points for your spells would be to use the "Hall of Secrets" and the other vendor (I forgot his name) that allows you to trade 1 Talent point for 10 skill points. Take only the Talents that you need (which should not be too many with a mage) and trade the rest for skill points. I can not tell how the endgame will be with a non-lone wolf mage, but with my (LW) mage, I have the following:
2 schools at level 5 (fire & air)
3 schools at level 4 (water, earth & Witchcraft)
My defenses are good (at least 3 in each) and I have both blacksmith & crafting at 5. Loremaster is at 4 (trying to find some good to get it to 5) My resistances are over 100%, which is great because I can use the fire spells and sit in them, while the enemies take damage & I heal. My character is currently level 18.
btw: as far as I know, perception doesn't help mages. There is a Talent that increases your distance by 2m and it is called "Far out Man" (I think)
Last edited by Wolfen2; 09/08/14 03:41 PM.