The choice between stainless steel and plastic cheese slicers depends on your personal preferences and needs. Stainless steel slicers are usually more durable and long-lasting compared to plastic ones. They are also resistant to rust and staining, making them easier to maintain and clean. However, stainless steel slicers can be more expensive than plastic ones. Plastic cheese slicers, on the other hand, are lightweight, affordable, and often dishwasher-safe. They are great for casual use or for those on a budget. However, they may not be as durable as stainless steel slicers and may break or bend if used with harder or firmer cheeses.