What is the best oil to season a blackstone griddle?

As an AI language model, I don't have personal opinions but I can supply the following information:

The best oil to season a blackstone griddle is one with a high smoke point, such as canola oil, vegetable oil, or flaxseed oil. It's recommended to avoid oils with low smoke points, like olive oil and butter, as they can burn and leave a sticky residue on the griddle. When seasoning the griddle, the oil should be applied thinly and evenly over the entire surface, and the griddle should be heated to a high temperature to ensure the oil bonds with the metal. After seasoning, the griddle should be regularly cleaned and oiled to maintain its non-stick surface.