AirRabbit,
Excellent description of how to teach someone how to correctly "flare" (check?) for landing - the best I've ever read - thanks!
Re the initial issue, just to add to the confusion - Airbus and Boeing ahve different meanings for Vref. In "AB-speak" there's only one Vref = Vls Config (Flaps/Slats) FULL. Due to the low-speed protections of the fly-by-wire system this is lower than the traditional Vref at 1.23 Vs instead of 1.3 Vs (in that configuration). In practice it means little (as Vls is not Vs) but AB has cunningly hidden it away in one little line in the QRH
p 2.32.
Essentially, no matter which type you fly, there will some additive to your basic approach speed to cater for the wind - usually up to a max of 20 kts so as not to infringe the landing distance calculation. In all cases, most if not all of this should be bled off after you cross the threshold and it is perfectly acceptable - even desirable - to touch down at a speed below Vref/Vls.
What's most important of all is to touch down in the TDZ and get the nosewheel on the ground without delay to maximise the retardation effort. Many more aircraft have gone off the far end of runways than have landed short (although it's usually more severe to hit the fence on the way in!). Safe landings (i.e. in TDZ) are what is required in any a/c especially a transport category one - not smooth ones. If you can achieve both, congratulations but never hold it off for a greaser.
Happy (safe) landings. You're only as good as the last one.