In my experience, they all make a good gun. There are reasons to love or abandon certain brands and those things are very personal. If it were stated that one or more of the "semi-customs" makes an inferior product, I would personally need to see evidence of that. I think it's an amazing time to buy off the secondary market. If I were putting an order in, I'd look very hard at the new King's River guns. I haven't even seen one in the flesh, but their bonafides and reports from actual owners are impressive. For me, it would probably have to be Guncrafter or Rock River. I would look hard at having a RRA built exactly as I would have it. I would look very hard at a NHC Classic. I would look hard at a GI BC-17 Hellcat or H.O.S.S. and the problem isn't picking "the wrong one", it's that no matter what you do you're leaving several "right ones" on the table. That's a good problem to have.
DW's shoot very, very well. My A2 will go up against any gun I've seen and it set me back $1249 over 5 years ago. Any maker from Dan Wesson and up will give you a great gun and as you spend more, the returns indeed diminish. If I were buying accuracy, I'd just spend $2,500 or so on a Baer PII. If I were buying the "custom touches", I'd look at guns like the NHC Classic, WC Supergrade and since the WC Supergrade team are all at King's River, I'd look at them. If I were looking for something "tactical", for lack of a better term, I'd look at guns like the NHC Firehawk or Sandhawk.
I have a very personal attachment to my RRA .45 and my GI BC-17 9mm. The list of sentimental reasons is long, but those sentimental attachments never could have been applied if they weren't rock solid tack drivers that approach or have reached something like "perfection" from the bench they were built on. RRA's use of Kart barrels and the ability to have virtually a full custom built for a relatively attractive price is a good reason to go with them. I looked into a King's River gun and their willingness to add custom touches that matter to me was awesome.