As was explained to me and makes sense, Aerad are clearer at first sight but tend to encourage cherrypicking of information which means it is more possible to omit data. Jepps are specifically designed to be read in a cirtain way, from top left to bottom right. The briefing strip at the top covers all the salient features of an approach plate. If you use the strip and read the chart as designed you won't omit any relevant information during the briefing. Works well and I'm converted.
I think BA use Aerad as they use to have (or still do) and interest in the company.