The document compares three Boeing aircraft: the 767, 777, and 787 Dreamliner. The 767 has a flat top fin and optional winglets. The 777 has plain wing tips and no fin filler, while some 777-300s have a longer fuselage and swept back wing tips. The 787 Dreamliner has swept wing tips, a rounded nose, angled flat fin top, and a more curved nose profile.