EC
I have done about 50hrs on a EC120 recently in a wide variety of wind conditions and weather, at times i was thrown around like a rag doll like nothing i have ever experienced and other days was nice and smooth well under 100kts anyway anything over it bounces around a bit. The small rotor head and small blades does not give you the best of rides all the time, B206 is nicer in all weather from what i have experienced.
EC120 looks nice, Great Vis, Huge boot, Is kind of pricy, support is Shi%house, Its really under power but if your always 2 pax thats not much of a problem
B206, Has stood the test of time, good support, reasonable price, power not so bad, Boot Space is average, not the best of vis for rear pax
H500, Looks Cool, Sounds Cool, Fast and nimble, No boot space and cramped rear seats, Not sure on smooth of ride or support