Someone mentioned SF and Vancouver – never been to either but I think I’d live there sight unseen.
I’m in the Basque Country, don’t think I’ll be leaving. Has its own distinct culture mixed in with the Spanish, and you’ve got France just up the road. I’m training on the road 15+ hrs a week in the mountains or on the coast, and it’s another world compared to doing the same in London and environs. Off the bike, there’s the rare treat of quiet city beaches in April/May when the weather’s good but the tourists haven’t arrived yet.
It does take time to make friends with the locals though. The weather is quite British (warmer, but rains more than Manchester, with more sunshine), and the food is often awful (YMMV; I’m vegan).
I do miss London (and Cumbria), but a week there every year is enough ;-)