There are very few things you can do to a crab cake to make it better than eating plain crab meat.
The best I had was a combination of crab and lobster shaped in a form and heated in a brown butter sauce.
Hard to call it a crab cake because it just fell apart, but was one of the best things I ever ate. It was a test dish at Le Cirque on (then) Lee Circle that ain’t dere no more.