new fish/depth finder

need your help guys. I need new finder but not sure what to get. whats the good ol tried and true that just to good to go away? or the latest greatest, easy dependable new stuff out there? hummingbird? garmin?anyone know anything about a 3d hummingbird? I hate my eagle 320 and dont want another one. appreciate your advice and thoughts. im not lookin for gps as my handheld works fine. thanks