energy efficient fans

Wanted to try Superfan, but the other thread on Superfan is not very encouraging. I'm presently using Usha Technix which is a 45w fan, but I'm not very happy with the quality, 2 of them has gone bad in 2 yrs of usage. Here are the options I found: 1. Superfan - 35w 2. Orient Ecotech 32w - Very...