It's funny how places with two JDWs often manage to filter all the problem customers towards one of them, leaving the other relatively calm. I mentioned Huddersfield previously, where the Cherry Tree on John William Street is a bit of a dive, but the Lord Wilson on King Street is more pleasant (unless it's Freshers Week at the nearby Uni). Taunton was similar when I lived there with the Perkin Warbeck on East Street being rough, and the Coal Orchard on the north side of the Tone being a bit nicer. A quick google tells me that the Coal Orchard is no longer a Spoons, and that the Perkin Warbeck has been smartened up a bit with some decent reviews and (fittingly) some mentions in articles about "nice Wetherspoons".
Mansfield is another, with the Court House in the middle of the town centre being rough and closing at 9pm as a result, and the Stag & Pheasant, on the edge of the town centre being nicer. There seems to be some correlation between proximity to the main shopping area (and curiously the bus station) and roughness, but I couldn't possibly comment on that!