To the best of my knowledge only the Poolview rooms and select Signature rooms have a balcony/patio (excl. rooms on the Gold floor and suites).

Among the rooms (excl. suites) that have a view of the waterfront, I'd guess <10% have a patio. Afaik most, but not all, Signature rooms do have a patio/balcony, however they vary in size (some are large enough to accommodate a table + chairs and others are merely large enough for people to stand outside)