The answer to 'best drip edge' is using a quality drip edge made of galvanized steel or aluminum. Drip edge is an essential roofing component that helps direct water away from the fascia board and prevent water damage. It's installed along the eaves and rakes (sloped roof edges) to create a barrier that prevents water from seeping under the shingles and into the home's exterior.
When choosing a drip edge, look for one that is at least 2 inches wide and has a downward-facing lip of at least 1/2 inch. This helps ensure proper water runoff. The metal should be thick enough to resist bending and corrosion. Galvanized steel and aluminum are common and durable options. Avoid cheaper plastic or vinyl drip edges, as they are more prone to warping and cracking over time.