On this one I am with Crab the aircraft is a delivery system to get the winchman to a casualty, however the cabin of that delivery system must be big enough to look after more than one seriously injured casualty.
It is extremely worrying, if it is true, that the bidders have been told to bid only on a split fleet of large and medium size helicopters, because there simply is not a medium size helicopter that is up to the job. They are all built for speed, twitchy in the hover and low cabin height having been designed round people sat in seats. Unfortunately, now that the MCA appear to have given the green light to the AW139 no one appears to be able to stop the ball rolling. I feel it will be regretted at some stage in the future.
S92's get my vote, or certainly aircraft big enough to continue the good work that has been achieved over the years.