Good question. For the most part, the condition of the comparable property when evaluating comps is what is most important. It doesn’t matter if the comparable is a short sale, reo, or any form of distress. Now I am a realtor not an appraiser and your question is better suited for an appraiser.
With that said however, there can be an argument made that the distress sales were sold below market value simply due to a more motivated seller. From your aspect as a buyer though, I would try to play the card that unless the property had some damage to it or was in poor condition, then comps are equal. Getting a seller to see that is more then a little challenging in this still somewhat delusional market.
