NorthernSky,
The question was not what your personal preferences are but why all (or most) new airlines choose 73's.
As far as I know there are not too many starting airline operators who ask their still to be hired pilots what plane they would like to fly. The boss buys the toys and we fly them ... or leave.
I do have my prefences but they are not so strong that I would quit my job and look for an airline that flies my taste.
Sq