My personal favorite is the DPMS Panther logo. (sidebar: my wife and I both shoot competitively and have identical custom built .223 AR-15s with DPMS/Panther lower recievers. The only difference in the rifles is the DPMS logo, seriel numbers and the Panther logo on mine is inlaid with royal blue acrylic, and hers is inlaid with pink. If I can ever figure out how to successfully upload images to this site, I will post a pic of the two.)