Well the easist is the UK for obvious reasons, the language and probably the easier country to intergrate into. Only problem is the UK is an expensive country to live in, espcially at the moment with a strong pound against the weak dollar, but that hold for most countries within the Eurozone as well. Could always try Ireland. Again there is not a language problem. Another problem, though, is both the UK and Ireland, whilst having a temperate climate (Birmingham is as north as Calgary), it does rain and if you like the sun you would be better looking at the south of France or even Spain, as you have experience in both Spanish and French. You will also find that a lot of UK citizens have a second property in France or Spain, so you could end up living in an area with predominately English speakers and thus help you slip into French or Spainish culture more easily.