Answering the question of "what do you do after your 1 or 2 control spells?", if you go outside of core to a book called "Complete Mage", there are these feats called reserve feats that let you use a spell-like ability at will as long as you have an appropriate spell prepared and not yet used. For example, there is a feat called "Fiery Burst" that lets you create a five-foot radius mini-fireball as long as you have a fire spell of second level or higher prepared, doing 1d6 per level of the spell, reflex save halves. Beats a wizard using a crossbow any day. Plus, you can pretend to be Roy Mustang.

Dedicated damage spells will of course be more powerful, but this way you can burn things all you want while only requiring a single spell slot to be held in reserve.