I personally like the Bling variety. Greg is out at the moment but hopefully more on the way soon
+1
Playfield starts to grey after 2 weeks play with Stern balls. Constantly cleaning and rag comes up sooty grey colour.
Changed to Bling and after 12 months play, the playfield is still like new without a clean. Some say to watch what balls you use on machines with magnet coils. I had no problems yet on AC/DC or Hulk.