In a showcase? I've tended to find higher quality providers when I notice a little thought and intelligence is put into the showcase. Things I look for are witty comments, a joke here and there, and just general thoughtfulness. I know, things can be faked, but those are things I like to see. Oh, also, smiles! I love to see smiles ( if a face is being shown ).
What about the rest of you? What floats your boat in showcases?