I have lived in Spain for a good 3 years now. I would not consider retiring here. Waaaay too many complications. It is also getting too busy here. August by far the worst month with over 2 million Spaniards arriving to Costa del Sol for vacation. You cant find a peaceful spot to save your life nor a parking spot. Traffic is horrendous.
But the climate. Now that is something else... Mountains and 65 open slopes just about an hours drive away from the cost where it is +18´C and this in January.
Still I loved Southern Pacific and all the small islands there. I am still about 34 some years to go to age 65 so I have some time to make up my mind. South America especially Southern Argentina and Chile are nice as well.
Cheers
JJ
Corrected for typo´s (probably some left)