I am of the opinion that, depending on wind and all other factors involved as discussed above, if possible always land so you can see whom or what approaches your aircraft. When landing at busy airfields, land facing the most dangerous part of the helicopter away from people. In some helicopters this is the front and back. I also teach this to my students. The reason is very simple....You never know the intension or state of mind of the person approachin the aircraft if any. And the possibility always exsist that some bloke would like to give you a quick message before you shut down for some stupid reason.
At the end of the day nobody can loose anything I think to do this if safe to do so.