Well about 3 months ago i bought about 5 fans to replace the old power hungry ones,i bought from both USHA and cromton greaves,the usha at 43watts consumes a good 10 watts less and both have a B.E.E rating of 5/5 ,usha also makes lesser noise.
My older fans where all Cromton Greaves,despite knowing that it consumes more then usha i bought it to just check out how it fares against the USHA,i.e for the extra power consumption does it give more air,not quite .
The adjacent room where my room partner stays has a very old Orient PSPO ceiling fan. While it is in motion, I think I can count the blades at the max. speed. Not that I'm complaining but hey it's at least 10 years old going by the looks of it and our landlord did not bother changing it either.