Picking new Health Insurance Provider?

[Galaril]

I have been working for one of the "Big Four Accounting Firms" and have had a regional insuraance HMO plan, Harvard Pilgrim for sometime. They are suppose to be one of the best in the country I have heard and my family has received greta care through them. So, today I get an email, basically saying that this HMO will no longer be offered by my firm as a health insurance provider for us. They have given us a choice of three plan s I have not heard of before. The three choices are below:

1)UnitedHealthcare Options PPO
2)Open Access Aetna Select Plan
3)Anthem National Blue Card PPO

I was hoping that anyone who has/or had any of these as there health provider give me their opinions as far as quality of services. I have started to research about the different plans and they seem somewhat similar. If anyone could recommend any it would be appreciated. Also, anyone in the health insurance industry who is familar with any of these companies please chime in as well.Thanks.
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