I will say, Magic Missile is an excellent single-target blast at 1st level. Ray of Enfeeblement is a good debuff IMO if you have good Dex to ensure a decent hit chance. Fear isn't bad either to put on someone before you allies try to attack, since it will almost certainly lower their AC a point or two. Burning Hands is good AoE having been bumped to 3d6 in 1.5, and Shocking Grasp is good if you find a foe wearing metal armor, persistent damage can be killer.
For later levels (If this Wizard is going onward in levels) I would give the advice that while blast spells are good damage they are mostly only good in your highest level or two of spell slots. MAYBE third highest at later levels. But they and some other spells just don't keep up if you aren't spending the higher level slots. So my advice is to watch for spells that remain good in low level slots so you can use them at later levels.
For example, True Strike and Ray of Enfeeblement are level 1 spells that remain quite useful at basically any level, Mirror Image stays good at level 2, Haste and Fear are great at level 3, maybe Slow too, and Enervation and Invisibility at 4 never get old.
Just something to help make the best use of your low level slots at higher levels.
