A good realtors does not sell houses, houses sell houses.
A good realtor take you to what you want, insists you get loan qualified first, and looks out for your interest.
The problem you have is one of ethics, why did you waste the time of 3 realtors when you had one?
As a Realtor myself I feel I can safely say there is no way around offending these agents. I agree whole heartedly with Duncan. Why let 4 agents work for you when you know, in the end, you will only be hiring 1 agent. I want to be clear, I encourage you to shop around & find the agent that offers you the best fit. Based on your question it seems that you let all 4 agents work for you under the false pretense that they would, in the end, represent you. The "high road" can be a lonely place but all of this could be avoided two ways. First, when you initially contacted these agents they could've asked you what should be a standard question..."Are you currently working with an agent?" Second, you should respect the fact that agents are competitive & work extremely hard for their clients. That being said, avoid this feeling of despair by picking the agent that best meets your needs from the beginning. I hope my opinion/advice benefits you & my fellow agents in the future.
Here's a quick list to review:
#1 - What costs are associated with utilizing your services and how are these costs offset by your value based services?
#2 - Are home warranty products and home service products available?
#3 - Is there a streamlined, one-stop-shopping service where one company can acheive all of my needs - selling, buying, financing, title services, and closing services.
#4 - How will you negotiate on my behalf and share with me some of your negotiation strategies and abilities.
#5 - What is your experience in the neighborhood I am buying or selling.
#6 - What are your credentials and how long have you been a Realtor and/or a real estate agent.
#7 - What real estate affiliations do you participate in as a member or affiliate.
#8 - What advantages will I receive by utilizing your services.
#9 - How will you handle my transaction from selling, acceptance, financing, and closing?
#10 - What resources of communication do you have available to communicate with me at my terms? I.E. - email-fax services, email, electronic services, voicemail, and transaction logs.
I hope these general thoughts help. Thanks!