Where do you have permission to work?
Whilst there is for now an unlevel playing field on licencing, you can only work where you have permission to work - irrespective of the licences you hold.
If you are British, a British licence is what you need to have.
That said, I think we're seeing the market heading towards it becoming possible to dual qualify, you'll probably have to take writtens twice (but only study once), but there seem an increasing number of schools and examiners setting up that you can get your flight training and skills test(s) UK and EASA at the same time, and for that matter, medicals - so if you do have permissions to work in countries other than the UK, that would probably be worth doing right now for somebody in your position.
And of course, flying hours are flying hours.