Not sure about Church's. Limited range of colours, mostly dark brown, a distinctly Italian feel to their re-furbished Jermyn Street shop, the staff look like schoolboys in their v-neck jumpers, corrected grain, 'polished binder', leather on many of their shoes, quite pricey, some odd styles.
I prefer C&J and Tricker's - distinctively English, good customer service, nice quality shoes. EG, Foster, Lobb - beautiful shoes, but very expensive. As always, I guess you get what you pay for.
As to quality, I'd say Church's can be quite variable, but are probably close to C&J benchgrade (I have owned C&J, Church's, Tricker's, EG) if you get the right one. To avoid disappointment, I suggest that if you can afford it and can stomach the 337 last, bag a C&J Handgrade! Tricker's country collection, particularly the full brogue "Bourton" in box calf (acorn or marron antique) is a very beautiful shoe. Church's have an exact copy in their JS shop. I guess a heavy brogue is a heavy brogue.
Most makers do good and bad shoes, so it's a matter of trial and error. I think you are on the safest ground of all with EG - superb quality, beautiful shoes, but it will cost you. Three tiers really: top, middle, bottom. The cat fighting is in the middle. A C&J Handgrade is not that much more than a benchgrade and less than EG all things considered, and you are away from the claws!