Hey RotorRock
Good question, level of enjoyment and pay seem to almost be two opposite lines on a graph for this job.
The happiest guys i know, the ones with the with the most interesting flying, are the VFR guys. The unhappiest are the IFR pilots, they get paid alot but in general they are touring to some dump, doing airline style flying, and are hooked into the money so hard they cant get out if they wanted to.
The irony is most of the VFR guys i know are trying to get into the IFR scene!