Plain dark ebony, with no figure. It just looks like pure class to me, especially with a gloss finish. Second choice would be morado, straight grain..cathedral cut I believe, just so natural and beautiful looking!

+1
 

+1 for Ebony tops, but for me they could be highly figured. These basses not only look wonderful, they have THE sound to me. I played 3 with these tops and they all were killin'.

Second choice would be dark Cocobolo or figured Koa.