B407 - carrying pax good considering 2 x rearwood facing pax, slinging/longline great, EMS good however crampted with stretcher in FWD pos and you loose a seat with it in the rear position medico's can access most of patient in rear pos, winching good but strecher winching is something to get used to. Performance, handling and reliability good with front bubble windows for larger types. Utility mode is good however limited without flat floor depending on load types. sliding doors a must on LH side
AS350b2/3 - carring pax good, better with twin bench front seat, slinging/longlining good however better with large vertical reference window in floor if you aren't tall enough to hang out or fit mod to move pilots seat outwoodly, EMS good with plenty of room however second medico in middle back seat might have to have long arms to assist medico at patients head. Difficult to work on patients trunk and lower limbs in flight because of position of stretcher in fwd pos. Excellent winch (pax or stretcher) platform with flat floor, utility roll is excellent with rear folding seats or easy to remove ie no probs with 200lt drum of fuel for ferries and plenty of tie down hard points, sliding doors a must. Performance, handling and reliability is good.
I concure with preivious statements as well on both types.