Hi, Windows vs Blackberry?

Hi, I realize that this is not the best place to ask these questions, but I?m a business owner and I?m trying to drill down on what is best Windows Mobile or Blackberry? It?s a question that just keeps coming up, Windows Mobile user?s rate Windows and Blackberry users rate Blackberry?s. Does anyone have and run both?
If Blackberry is the way forward what model is the best?

Go easy guy?s I?m just trying to find out what device is going to be best for our sales agents.

Regards

Print2group