Perspective...
having flown BOTH....i think i'll jump in with my FREE and worthless opinion!
If you are single, there is no doubt in my mind that bizjet flying (Part 91/135) is better for all the previously mentioned reasons.....variety of flying, independence, exotic overseas destinations etc. also, the chicks at the FBO''s are WAY better looking than the FA's in the airline world!!
However, if you are married with a family....airline flying is better hands down. Yes, it is more boring, but if you want to stay married, go to ALL the soccer/basketball games, have lots of control of your sked with over half the month off....its the way to go!
Now if you are able to land one of the very FEW high paying fortune 10 corporate jobs flying a G550 or better ...then i would think that the job is comparable to airline flying at the senior legacy level....Nowadays, that job would be comparable to a senior SWA capt making 200K plus flying a 3 on 4 off sked....job security, sked and pay would be pretty comparable...those jobs are very uncommon and you HAVE to know someone....maybe intimately (just kidding)...to get the job. Your chances of finding a comparable airline job is better based on shear number of jobs available.
the important thing to remember is that for every G550 job paying big bucks, no flight department mergers or downsizing, adequate skeds, and good bosses....there are literally thousands of terrible 135 bizjet jobs. unfortunately, like the airline pilots starting at the regional level....most bizjet pilots have to pay their dues flying at these outfits to gain experience and to network!!!
to make it big in corporate....network network network!!!
to make it in airlines.....PIC Turbine PIC Turbine PIC Turbine!!!
and vice versa!
remember: opinions are like ar$h0Le$...everyone's got one and they all STINK!