When it comes to (diesel) locos I find its easy choosing between Hornby and Bachmann because they tend to focus on different models. Bachmann tends to focus on 37, 47, 57, 66 whilst Hornby focuses on the 08, 31, 56 and 60, whilst they both produce a decent class 08.
However, in terms of wagons there seems to be a greater overlap? Hornby TTAs seem vastly inferior to Bachmann. However, I couldn't see much difference between both manufacturers' seacow wagons.
In terms of BR Sectorisation era wagons, how does the detail compare between Hornby and Bachmann? Is Bachmann generally better or does it totally depend on which exact wagon? I don't have a model shop nearby so I am totally reliant on photos/videos and sometimes they can be deceiving. Are there any wagon models to particularly avoid?