Good read thanks.  Agree Dr Who should be somewhere in the list and for me personally, I think Whitewater should be No. 1 if only for the fact that it is so unique.  WH2O's only downside being that the topper doesn't actually interact with game play which is where the FT topper may top it (yes, pun intended sorry).

I wonder if anyone has ever considered making up some code so that the waterfall lights are off during a game and come on when you shoot the insanity falls ramp, during multiball etc to make it a bit more interactive.  The lights could come back on in attract mode.