Regression analysis to evaluate best model

I'm hoping someone can point me in the right direction.

I have two models for predicting the age of a person based upon their first name (Name & estimated age) and I need to evaluate which of the two Is 'most accurate' / closest to the ages or (average age by name) of the same name in my customer base.

Would using excels regression analysis to compare the ave age in the data base against the predicted age for the same names in mode A & B help me determine which model to utilize when comparing the Multiple R and p values to see which model shows the strongest significant relationship to my database?

Thanks in advance.