Horses for courses I guess. Jetranger if want to do a wide range of work, 120 if you mainly fly pax. 40 year old design vs new one? Who cares. Which one makes the most commercial sense, thats the bottom line. Second-hand L-4 would be much better than either.
TC, I think you will find that the tail-rotor is not an issue in the B III Jet-ranger.
I would consider someone with 1000 hours on type to have a bit of an idea. What do you consider experienced on type? Just remeber its not always total hours on type, but what you did in those hours...