How to compare your company to your competitors?
Don't talk negative about your competition, but instead flip it around and show what you and your company can do.
Always assume that you are not the only person your prospect is talking to, and help them understand why you, and no one else is able to do the work.
Educate your prospects and help them understand the questions they should know to compare you with your competition, where your answers would come on top.
Your attitude, your personality, the way that you do business, is what is going to sell them first.