For me it would have to be flying for a wealthy family to exotic locations earning a lot of money doing as little as possible.
Something like a Gulfstream G650 or a global express would fulfil this quite well.
GG the reality of that job is effective 24/7 standby interspersed with flying that is not limited by ANY FTLs.
I guess some people like that lifestyle.
In truth there is no correct answer...its extremely subjective.