The material is more important than whether it is a spade or banana. Bananas usually sound like s--t, as does gold plating, etc. The banana spring tension goes south and the sound goes with it. Go with Cardas Rhodium and you will notice that when you clean them there is no black grunge like there is with gold. The Rhodium also sound good today and a year from now. I like spades which fit good, or a banana which is very tight, not the ones with the spring which twirls...gives you another contact area to bridge. Use quicksilver cleaner or the like.