Which AVM's have you used?

[Ted Akers]

I am analyzing a portfolio of rentals in a southeast state and am starting to review Automated Valuation Models and providers. Does anyone have suggestions based on experience for accuracy and pricing of the AVM? Any thoughts or experience with Core Logic, Real Quest, Credit Technologies, Fiserv, LP Services, Sitex, Freddie Mac HVE, or others? I am looking for higher accurancy than Trulia or Zillow.

Thanks in advance for your input.