The blue rhino's side tables fold up to make the lid for the griddle. On the blackstone, the side tables are stationary and you have to order a lid if you want something more than the soft cover.

The grease cup on the blue rhino is in the front left corner. It's on the back middle of the blackstone. The blue rhino cup may be a tad bigger.

The far right burner on the blue rhino is a "searing station"". It does get hotter than the other burners. On the blackstone, all the burners go to the same temp. I'm not sure if the searing station on the blue rhino is hotter than the burners on the blackstone