To state, as Art Thieme does, that "Joe Hickerson is the one who did most of this song." to me is overstating the case.

It was Pete Seeger who had the original idea and wrote the original song. Joe Hickerson in adding the extra verses changed the character of the song, IMO.

I have, up in the loft, an LP in which Pete Seeger sings the original three verse version unaccompanied in live performance. In the third verse he sings

Where have all the young men gone?
Long time passing
Where have all the young men gone?
Long time ago
Where have all the young men gone?
They're all in uniform.

At that point he finishes the song. For me that created quite a powerful effect and gives the song a different character to the "cycle of life and death" that Joe Hickerson's extra verses give.

Which you think is better is, of course, entirely up to you.