Tec-pilot
The 109 has never had any problems with the height of the main rotor for EMS or any other operations. If you are referring to the tail rotor then this is also not an issue due to the very quick shut down time and even less of an issue in an EMS role where the crew are trained and familiar with the standard loading procedure.
As for speed of response not being an issue then it is difficult to see how this statement fits in with the 'Golden Hour' philosophy and may be difficult to explain to someone who could have been saved if the aircraft could have been there a minute earlier!!
The Power didnt have alot of tailboom problems as you state, in fact it had one, which was identified and dealt with under warranty in a swift manner. In fact all Powers after 2002 had the modifications to strenghten the particular area built in as standard so was never an issue.
As for your statement to say that the Power needs to see an engineer every day, well quite frankly that is a load of old nonsense. The A and C models were pretty labour intensive but the E is an extremely reliable machine. If you need proof speak to the US Coast Guard and ask for their availability stats.
Finally check your cabin internal volumes and I think you will find the S will have the largest cabin in the class. The 135 and 902 give a better perception of space due to the adjoined baggage area whereas the 109 has a seperate baggage area in the tail boom.
TC:
Doesnt 'duty of care' also include ensuring the crew are given the most capable aircraft. If so then when the weather gets rough I know which system I would prefer in a 40knot crosswind!!!