familiar's are a better choice than a bonded item because they are never worse than nothing. If your familiar dies, you can still do everything you want to as a wizard. Meanwhile, how often have you been imprisoned and lost all your gear? Or fallen into an ooze?
My favorite school to specialize is conjuration. The teleportation sub school is amazing. The best controller spells are conjuration. Stinking Cloud, Sleet Storm, the pit spells, walls of stone and iron.
Not to mention the summon monster line of spells. If you plan on summoning a lot, I advise augment summoning as a feat.
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"What if you just eat vegetarians?"-neonreaper
"^ You are what you eat. ^_~"-Koiji