You have to choose one. Not say 'but I'd never pick either of those for retirement'.
Some points to consider:
- you don't drive
- you love the sea
- you want good healthcare (no pre-existing conditions)
- a friendly community is key, with lots to do
- value for money, both in terms of the property you'd buy and everyday life in general
- decent airport links
- your language skills are good; fluent in French and Spanish could be picked up easily
- somewhere with a holiday - but not a party - feel.
Go! 