I am lucky to have travelled extensively, its always impossible to answer the question where is your favourite place.
But here are a few of mine -

Lake Garda Italy.
New Zealand ( north and south islands).
The Hunter Valley wine region Australia.
Napa Valley wine region USA.
The Maldives Indian Ocean.
Sydney Harbour.
Venice.
Aruba.
Barbados ( especially Mullins Beach ).

There are a few of my favourite places, but there are many more.