Well I haven't sailed enough areas to come up with more than 5.
In no particular order
Clyde and West Coast Scotland.
(scenery, Lots of wild life, quiet, lots of nice anchorages with lots of nice pubs)
South Coast England Chanel Islands and North Coast of France.
(Great opertunity to sail across to another country)
Southern Gulf Islands BC and San Juans USA.
(Sheltered waters, Scenery, Wildlife, Accsesabilty, Lots of destinations)
Desolation Sound
(As abouve but more Remote few pubs)
West Coast Vancouver Island.
(Even more remote not so sheltered)
Haven't sailed anywhere else yet
Might be intersting to Ask for 5 place you would like to sail. Maybee we should be saing why we recomend our top 5.