The 4th easiest to fly was the Diamond DV20/DA20 Katana and the 5th easiest to fly was American Champion Citabria. I question some of the choices but I could not say as I haven't flown all of these. I've flown the Cessna172, Piper Pa28 version the Warrier, and the Cessna 150. The Katana or Citabria i haven't flown.