What exactly was the reason these troops were so powerful? What distinguished them from a normal cavalry unit? And how did those wings bring advantages when they fought?
Or is it because the Winged Hussers became so legendary that they did it in the siege of Vienna?
Before other response come in, you might be interested in my response to similar question regarding general military prowess of the Polish-Lithuanian Hussars in this thread, and the brief summary of the presumed role of the wings in this one.
Previous answer by u/noble_devil_boruta.