I think if they were going to change WGRYWH up for the single release, they should have kept the icy, panoramic, distorted album version, and merely added the guitar solo that Edge was already playing live on the Zoo TV Tour (with Bono's vocalizations during it). They really elevated the song in an arena setting.
But, even then, I still think all "single versions" are bad. (The only superior "single version" I've ever heard is "High" by The Cure.) I think "single versions" bother me because, by the time they're released - at least in U2's case - the album versions have already existed for months. They were born alongside a family of songs, and live as part of a continuum. The version on the album - THAT's the song. Anything else is a) an attempt to cash in on fans who want to collect everything, or b) a not-uncommon instance of the band second-guessing themselves after an album has been released.
I think one of the worst things U2 ever did was its single version of Please. The version on the single ignores the simple, punchy, cool staccato jumpiness of the album version, and replaces it with a slick, digital sheen; an Edge-by-numbers guitar solo; a plodding Adam-by-numbers descending bassline; and strings that sound like they came out of a BeeGees tune. I know, they played it that way live, but in a live setting, it managed to still feel organic. I know many, many fans disagree, but I think they tore the life out of that song when they re-recorded it.
The most bizarre remake, though, was Numb on the Best Of... album. The changes added nothing to the song; they were actually more of a distraction. Because, we'd already known for the better part of a decade what Numb sounds like. And, what they released on the Best Of... wasn't Numb. I guess they thought Larry and Bono didn't get to sing enough on Edge's showcase song? And, they thought they put the samples in the wrong places? It was a completely useless facelift.
I'm actually starting to view U2 as the George Lucases of rock and roll, because, like George and his Special Editions, U2 seem to feel this need to go back and tinker with things that they feel are imperfect or unfinished, even after periods of years. It seems absurd that Bono or Edge or somebody would be stewing for ten years because they think they didn't nail a song. "Huh? It's time to put out the Best of 1991-2000? Good, because the original version of Numb is KILLING ME." Yes, Numb is the property of U2, just as Star Wars is the property of George Lucas, but there's almost something insulting about an artist telling you, years later, that you never heard the real version of a song.
Anyway, to answer your WGRYWH question - ALBUM VERSION!!!