Jet 2 or similar Vs EK, it's horses for courses imho.
Jet 2 and Thomson have a 10 billion(est) claim for pax delays outstanding after losing a case last year.
The lure of sleeping in the same bed is very enticing, though to fly your roster in Low Cost and no night flights, you will be in and out of it VERY early. This has it's own fatiguing accumulation.
The money, or lack of, IS an issue. Especially if you have kids of school/uni age. The UK is not cheap.
EK simply has to improve or it will simply park jets, which costs heaps, and then end up like Gulf Air.
I for one am giving it a few months to see how the new appointees cope and what ideas they have to retain those of us already here.
If a 2 mth on 1 off system was brought in for us old farts I would stay. Apr 16 is our "redline" .