First things first: As others have already said, shoot both, and maybe a few other weapons before choosing. How it feels in your hand is of primary concern before buying a gun.
That said, I have owned three Berettas, and never owned a Taurus. I have fired a Taurus PT92 vs. my Beretta 92, and functionally, they are nearly identical. In fact, had I closed my eyes and someone had handed me either weapon, I know I wouldn't have been able to tell the difference, in weight, grip, accuracy, whatever.
I thought the trigger was slightly better in the Beretta (less gritty), but otherwise they were comparable.
The two main differences between these guns IMO, are as follows:
The Beretta will consistently have a higher re-sale value. This is not an opinion; it's a fact.
Beretta has pretty good customer service. I have never owned a Taurus, but I have three friends that own them, and they all have recounted stories of difficulties with Taurus as to customer service. Of course, that's a very small sample size, but when several friends tell me they had problems with a company I tend to steer away.
Hope that helps.