World Poker Tour is a top 15 game in my opinion. It has the best designer (S. Ritchie) and programmer (K. Johnson) in pinball and has lots of drops, deep finished software, unique layout, etc. 2nd on my list would be Wheel of Fortune. The two most underrated Stern pins imo.
And is F14 really not in the top 100? That game rocks and has one of the best sound and light shows in pinball!