Can you please help me in deciding between Fuze, Clip+ and E270?

The Fuze has a higher power output than the Clip+. This will make the Fuze sound better than the Clip+, especially if you are using less efficient headphones. The Clip is brighter sounding than the Clip+, with the Fuze being between the two. The differences are small though. Imo the Clip was a bit too bright though, with the Fuze being the best balanced of the three. It is important to use headphones 32 ohms or under to get decent sound from the Clip, Clip+, or Fuze, with efficient 16 ohm earphones being the best choice(the lowest impedance headphones I have seen is the 24 ohm Sony V900HD9(7509HD). Anyone here know of a 16 ohm circumaural headphones?