Sats: If you comb through old posts on LTG, you'll see that the DV52 is not under-appreciated here -- far from it! (Out in the real world, yes.) Several of us, including me, think the DV52 is one of the "best guitars for the money" Guild ever offered.
I've owned several of both the MOP and herringbone versions -- still have one of them. While I too prefer the look of the herringbone, I couldn't discern any appreciable difference in sound between the two versions. Which makes sense -- unless there was a difference in the internal build, and I've never heard anyone suggest that there was, the trim itself wouldn't have had any impact on the sound.
I'm not saying that there aren't differences in sound between the same exact models made in the same time period. I've played D25s and JF30s, models I'm very familiar with, that were not quite on par with the best versions of those models I've encountered. And a number of LTGers have reported encountering the odd "dud" Guild now and again.
Part of the reason for that may be that Guild guitars, for nearly the first half century of their existence, were made by hand, so there was bound to be some slight variances.
But another part of the difference may have to do with how much the guitar was played. In my experience the best sounding guitars are the ones that got played a lot. For that reason, I never turn up my nose at a guitar that has a lot of miles on it.