Sure, it sold better, but that doesn't mean that it was the better album. But don't forget all the media hype surrounding it. It was Morrissey's big comeback, he was on the front cover of several music magazines, he gave more interviews, he was on Jools Holland and Jonathan Ross - in short, he had a lot more media exposure, the timing of the TV appearances was perfect... a really good job by his PR team. Don't underestimate those things. All this didn't happen for Ringleader, at least not to such an extent.
The production on Quarry ruined a lot for me. It's great for poppy singles like Irish Blood, English Heart and First of The Gang but it destroys the rest of the album. The prime example is Come Back To Camden. Probably one of the best songs he's ever written, good lyrics, fantastic vocal melody, and then Finn comes and messes it up with those fake strings. I know a lot of people say that the production on Ringleader is overblown but I think it fits the concept and the mood of the album perfectly. Each album is different though, and I might find another Visconti-produced album horrible while I might love Finn's work on it, but if Quarry is anything to judge by I'm pessimistic.