My three personal favorites, in no particular order, are the Stretch, Kiwi, and Chaparral. "Flagship" is harder. Among those currently in production, I'd say the three most "iconic" would be the Police, Delica, and Military while the three best sellers would probably be the Delica, Tenacious, and Native and the three current "Afi favorites" would be the Military, ParaMilitary 2, and Manix 2.