I think that factor is of higher relative importance than the nearly never heard of reviews with OTA reception by that model as a factor. Perhaps someone can correct me if I am in ignorance.
In any event the basic info available @ http://www.antennaweb.org may enlighten you about your relative antenna reception prospects. Don't be put off by the filling in the blanks of personal info. I've been there several times & just opt out of requests for further contact. I have never been contacted by them.
As to pertinent metrics, just Google & there are firms in that sort of business but apparently there are focused on commercial reception not the homeowner level.
I've been browsing reviews of HDTVs & found little if any coverage of Over The Air performance. Are there any metrics for this? Some standard against which everything can be measured? I live in a really hostile reception area, and OTA reception reviews are a critical issue to me. Is there any accepted standard measure of reception sensitivity/robustness?