Quoted from beatmaster:bang for the buck is definitely pro, not enough gameplay differences.
if you like the blings that's another story, go premium or le.
Light show for LE/Prem is awesome but I have to agree. If I were to buy one it would be a pro unless the Prmium kept dropping in price. Pro plays a bit faster with all plastic ramps and I don't mind the ball pop out in the corner I like the challenge.