(1) Use of suitable existing towers or base stations is preferred over placement of new towers;

(2) New base stations that do not exceed height limitations for the zoning district are preferred over base stations that do exceed the height limitation for the zoning district;

(3) Concealed wireless communication facilities that cannot be readily observable by pedestrians on adjacent streets to such facility are preferred over facilities that are readily observable by pedestrians on adjacent streets;

(4) Collocation of multiple uses on a single wireless communication facility will have significant favorable weight in evaluating the application;

(5) Network development plans that achieve the fewest number of wireless communication facilities of all users reasonably necessary for commercial coverage are preferred;

(6) Location in nonresidential zoning districts is preferred over residential districts;

(7) Suitability of the location for collocation of governmental public service wireless service facilities.