I REALLY like
#32. I am not the only judge though. I am the marketing person running the contest. Staff here feel it's too "American" looking, most likely due to the color scheme. Ony half of AMCA's membership is from the U.S. Would you try other color schemes - I like the red/blue wavy line - we feel it represents heating and cooling which is our industry. Try different colors for the acronym AMCA - maybe all solid too.