The Shearwater has not been out long enough for your poll to truly indicate favorability by numbers.
Why don't you ask the people that have owned and used the VR3 and HSE and now own a Shearwater which they like best. This will give you an indication how they compare based on each person's experience on all three computers.
My vote is for the Shearwater!!!!!!!!!!!!!!
and I have now owned all three plus some others.