The best material for lavatory sinks is ceramic or porcelain. These materials are highly durable, easy to clean, and offer a wide range of aesthetic options. Ceramic and porcelain sinks are also known for their resistance to stains and scratches, making them a practical choice for high-traffic bathrooms. According to a study by the National Kitchen & Bath Association, ceramic and porcelain sinks are the most popular choices among homeowners due to their longevity and low maintenance requirements. Additionally, these materials are available in various finishes and colors, allowing for customization to match any bathroom design.