It being like a good book, interesting characters and an interesting setting. Quality of the puzzles matters a close second. After all these years playing I'm okay with moon logic puzzles.
The third game pretended the second didn't exist, no ? Hah.
Ah right, not sure why I forgot Bush the Elder or Truman. But LBJ was in WW2, he was 33 or so at the time so not that old at least going off of - https://en.wikipedia.org/wiki/Lyndon_B._Johnson#Active_military_duty_(1941–1942)
Possibly, the list of Presidents who have had that doesn't indicate it's much of a quality
But his statement was "Those who have never fought for the colors they fly should be careful about criticizing those who have." and that's a bit nonsense, even if it's rather common. Also strange as that MP has warned about trying to preserve the "special relationship" as apparently the US is becoming isolationist and then says what he said there.