I would look into very few balls because of the difference in dynamics caused by different weight blocks. Right now, my wife and son use 13 lb balls. I will get my son some Columbia balls because I like the Superflex/light blub core/coverstock combo. Other than that, I would stick with Brunswick and Dynothane for lighter weight balls, because I know they use the same types of cores in all their balls down (depending on the ball) 12, 11 or even 10 lbs. Frankly, if your wife has hand and is precise, I'd get her something like a Dynothane Vendetta Pearl or Particle Pearl -- both very good balls, at very good prices, that get through the heads and make a reasonable move on the backend. If you are looking for something more forgiving and stronger, go to Brunswick's mid-price line or even a lightweight Inferno, these will be (in my experience) relatively stronger and more...forgiving (i.e., the balls have minds of their own, allowing them to "make up" for user error).
The other option is to use a simple "hockey-puck" core that is more than a pancake, but pretty simple. For that, Ebonite's Tornados are fine, as are other "intro" level balls.
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