Weight IS performance... part of it anyway. I think of wood lams in terms of weight/resilience and aesthetics. Some can satiate me in both of those categories, while others are used with a more specific purpose in mind.
Cherry, Sassafras, Red Elm, and Yew are some of my favorites which I will use quartersawn inside for strength and consistency. .. and then flatsawn under the clear glass for looks.
I don't particularly care for the look of walnut under clear glass, so use it inside with something more aesthetically pleasing visible under the glass.