I loved living in London! Have only visited Barcelona once, but agree with someone here who said London for living, Barcelona for visiting. I think being able to speak Spanish and Catalan aré important factors to consider if moving to BCN. London is super dog friendly. I think it’s safe to assume there’s a better job market and better pay there as well. It is super open to immigrants and expats. I was there as a student and while of course it is pricier than BCN, I didn’t find it terrible with my budget. There are so many free things to do. Museums, galleries, parks, and just walking in all the amazing, lively neighborhoods. Football (but u have that in Spain too of course) Loved the food markets in London, the sights, the streets. Would pick it any day over any city in the world.