I've rolled many kinds of wizards/sorcerers in my life, but they all had similar spell selection. However, there are some spells that are MUSTHAVE for gameplay fun.
Only core.
0: Detect Magic, magic items handy GPS.
Light, dark vision is for weenies.
1: Shocking Grasp, once I sentenced an entire party of npcs to death by poking.
Erase, because.
2: Web, best spell ever made.
Shatter, GASP that guy has a sword... *had*
3: Explosive Runes, if you are reading this *BOOM!*
Blink, tastes like Houdini.
4: Dimension Door, *swirling* "This is an unsanctioned use of magical energy. All involved will be held. This disturbance is OVER."
Fire Shield/Stoneskin combo, what can I say? I love classics.
5: Mirage Arcana, the show must go on.
Telekinesis, the force is strong in me.
6: Disintegrate, POWAAAAH!
Antimagic Field or Contingency, if I can't get my hands on Craft Contingency feat.
7: Simulacrum, always wanted to be in 2 places at the same time.
Spell Turning, hehehe. I love this thing.
8: Power Word; Stun, STOP! It's hammer time.
Otiluk's Telekinetic Sphere, baddass retreat.
9: Mordekain's Disjunction, this thing should be banned.
Time Stop, classic fun.