I'm far from being a wizard expert, but I'm usually starting with Immolation, followed by Hail Storm. Then Rays and Fire Ball (to reset Rays).
By then, usually the first two are back up.
Before fight, use the temporary self buffs.
Once you have 150 stacks of frozen solid, some spells become instant cast and are nice fillers as well.
For AE, of course the blue AE spells.