Ride as many as you can...
I have a 2009 Dolce Elite and love it. After riding every road bike I could find in my size, this is the one that consistently put a smile on my face. (The component level may not be the most impressive for the money, but this was not a deal-breaker for me.)
I agree, however, that the best purchasing strategy is to test ride as many bikes as you can find. Eventually one will stand out above the others and ask to follow you home. :)
It's very helpful to find out what other cyclists have liked, but the final decision is yours. If it is not comfortable-or if the handling doesn't suit your riding style, it will end up abandoned in a corner. Good luck in your search!