The ones most often used would be large and easy to reach.
Which letter of the English language is the one we use most?
I'd probably use most at the weekend but it doesn't work then.
The park is one of the most heavily used in the state.
It is the first treatment choice and the most widely used.
This is the system most widely used among such systems available to the developed countries.
The natural resource most used by the people is the rich land.
He'd have learned that from his father, but it could hardly be the language he used most.
"This looks like a very serious matter" was the phrase most often used.
Of these agents, water is by far the most widely used.