Materials only comparison or installed price?

Usually I see the OC Duration compare to the Landmark Pro.

Both great shingles and probably top two in an asphalt composition in my opinion.

installed price. i like them both and can't decide. we have landmark certainteed in driftwood on our house now and have been happy with them, so maybe i should use the same. the owens corning in Amber are really pretty too

The OC premium colors are really good looking but having a good working relationship with the Certainteeds should certainly factor in.