There will always be disagreement and discussion among pilots about approach and landing techniques for snow,as well as mountain technique.Having read with interest all in this post I thought I'd add a bit more for the benefit of those seeking information.The experienced people on this forum have their own ideas and are unlikely to modify them much now.There is one thing here that hasn't really been mentioned and thats to use a method with which you are comfortable.
When I first went Heliskiing I was forced to do approaches in a way that my instructor and boss swore was the "Correct way".It may have been to him,but I was more comfortable using a different[more flexible]technique that I developed over time and I believe I was safer doing what I was comfortable with than operating an obviously legitimate way but made me uneasy.In my opinion,listen to all the suggestions in here,but be comfortable with whatever you adopt.
I have been taught both flat and steep approach to landing technique and several methods of landing in snow.All of them have their good and bad points so I usually adapted a technique dependant on the conditions at the time,ie knowing how to use any technique and knowing which one would be safest.Most of the time I didn't have the luxury of being able to enter a high hover due to weight and altitude,so no hover was the only option.So,for those of you wanting info,learn all the techniques because you may not have the option of choosing the one you want.
Having re-read one of my posts I would like to clarify one thing.My remark about burning off hoar frost by hovering applies in conditions of no precipitation.ie the aircraft sitting outside on a cold clear night.It burns off frost evenly and quickly,I've never had an imbalance.If somehow there is contaminate on the blades that affects lift you'll notice it with a power check and there'll be loss of lift and vibration.This remark was made more in the context of discussion between experienced people and I was unwise to suggest it be adopted by newcomers to winter flying.An intimate familiarity with the aircraft is essential and would probably only be felt by someone operating an aircraft professionally on a daily basis.Having said that,to remove/melt frozen precip off rotors is time consuming and must be meticulously done to avoid imbalance between the blades or else you'll have serious vibrations that will not go away.