It depends on the Operators SOP's as well. My company has a preferred landing CONFIG of Flap3 (subject to runway length) but it is up to the operating crew to choose.
One of the main factors is wind component on final approach - not just the surface wind. If there is a tailwind on the approach then it's flap full usually as the aircraft deceleration is too slow whilst trying to comply with ATC speed requests (160 to 4d). Likewise a crosswind, straight across, on the approach can also compromise deceleration to the point where it's easier (from a stability point of view) to just elect to use flap full.
It is a requirement that we must be in the landing configuration by 1000' agl and we must be stable at 500'.
When we brief the approach we will state the proposed config - but can elect to modify it subject to conditions. If I'm honest, I would treat any reports of a wind shift in my favour around 500' with caution. If there's a chance I'm going to be unstable I'll just elect to go flap full - I may burn a little extra fuel but it'll be a damn sight less than a go-around!
The way VIE does it sounds simple and will give the crew an early heads up - particularly as we listen to the ATIS prior to briefing. The more info the better!