IMO the idea of a center piece fish in a tropical community tank never worked except for those in the hobby that know what to look for. The idea of a center piece fish capturing the attention of guest, passerby's, or novice doesn't exist within the common choices of available species. What has worked for me as a center piece that captures peoples attention, at least in my 120 community tank is a center pair of Angels. My 6" pair of Vail Angels are literally the center piece of my 120 tropical community tank that never fail to capture peoples attention. Always in the center of the tank, always elegant, always greeting passerby's, and always dancing together for a treat while all the other spices are either running for cover or going about their single fish business.
From experience I'm convinced that a well established pair of Angels, truly are an attractive centerpiece to any compatible community, excluding Tetras and small dainos of course.