A view from a Rock
If we're discussing Regional connections, I would hoist the Jersey flag with some observations on today's departures ....
BE - 15 to various destinations (GCI, SOU, LCY, BHX, BRS, EXT).
BA - 5 to Gatwick (LGW).
GR - 3 to GCI
The loss of BE would have huge impact on Jersey, especially the Finance Industry but also, of course, the Tourist Industry and the local population. From a local perspective, BE is simply essential.