A hedge is far different than a wind shield planting. The hedge is to be continuious whereas the wind shield a protection device. Both plants are excellent for either purpose.
Frankly I would go with the wind shield approach. The Leylandi is a fairly good choice. Cheap, fast growth, and good shape. The Cedar also a good choice, however, consider White Pines, Black Pines, or a conifer for your region.
Place the pine or conifer in a row out front with twelve foot spacing (center to center). Use the Leylandi as a back row 6' behind and at the same 12' centers. You can mix and match the conifers. Use three White at the ends, three cedar in the center, then fill in with hemlocks, black pine, etc, in groups of two or three.
Be prepared for some insect and disease problems on any/all of these. Contact your local landscape supply store and county extension agent for spraying with a "dormant oil" as a preventive measure. Feed the entire spread with a granular 10-10-10 with minerals (cheap) in early spring and mid fall. Inspect the trees for
Bagworm and similar insects twice a month and follow the advise of the County Extension for control.
Buy Ball and Burlap, if possible, for the trees. The Leylandi are fine in Containers. Prep the soil with Sphagnum Moss and some small amount of fert for backfill. Good Luck. I am at gjgjobs@yahoo.com