May I put my biassed view!
I moved to Cornwall with my job as a young man aged 26 and lived on the west coast for 17 years.
In the summer Cornwall is packed with visitors and difficult to get around.
In the winter Cornwall is cold and wet and in my opinion an unpleasant place to live particularly on the west coast.
I was a young man when I moved there and my body got used to the weather but if you move there as an older person your body finds it difficult to acclimatise.
The people who make money out of the older person are solicitors and undertakers so beware.
Cornwall was once described to me as an ugly picture in a beautiful frame!
Finally house prices are outrageous.
Now Devon is another matter, I lived in Tavistock for 7 years after moving from Cornwall.
Tavistock is a nice place to live, nice shops, friendly people and very close to Dartmoor,
avoid Plymouth a very unpleasant place to live.
I now live in Somerset near the county town Taunton and have lived here after Devon.
Out of the three counties I like Somerset the best.
The weather is drier and milder and Exmoor is very pleasant for a Sunday picnic.
In the main the holiday makers avoid it in their rush to Devon and Cornwall.
It's nicer place to drive you morgan as well.
Hope my biassed opinion helps!
Eddie.