If I were invited to go? Alas my ttpto - time to prepare take off - , is so long, I haven't been invited, but if I were.
there would be only one engine for me a 4 stroke!
its all about endurance over hostile conditions, and reliability. The ability to got 50% further on the same fuel load, plus machinery running far from their operating tolerenaces, would seal the deal for me.
no doubt will be very helpful when you get into hopping over mountains / ranges
good luck