I have just looked at LGW - 15 MAY - JER - 20 MAY - LGW
For flights at more or less the same time of day (lunchtime):
BA - £125.35 including 1PC luggage (which I will need)
BE - £137.60 no luggage.
BA, not my favourite airline, but better service, more reliable, overall a better experience, and cheaper.
A bit of a 'no-brainer', as the saying goes. I've booked BA.