Hi Ed,
You’ll really need to learn at least some basic Spanish if you want to live happily in Ecuador. In areas with a large expat population (like Cuenca or Vilcabamba) you’ll have plenty of English speakers to converse with. But still, you’ll need to be able to communicate on some level with taxi drivers, store owners, and your neighbors. Many expats live here without ever becoming fluent, but honestly the more Spanish you know, the richer your experience will be.
If you just don’t want to learn any Spanish, then I think an English-speaking nation would be your best bet for relocation.