I recently had the chance to play a lot of the new Sterns one after the other at Pinball hall of fame in Vegas,
75c for a 5 ball game an absolute bargain could have easily spent all day there....
I thought all of them gave reasonable ball play time for the player which shows good design ( not quickly losing or draining the ball )
I personally leaned towards Iron Man as my preferred Machine.
Funniest thing I have ever experienced in pinball is The Fart Multiball on the Family Guy!!!