WOZ is on top right now, but I realize I'm still in the honeymoon phase, so not sure if that really counts.
I always put games into 3 eras, EM's, SS (77-91), & DMD.
EM - 1968 Williams Lady Luck would be the last one to go, but it would kill me to part with most of my wedgeheads
SS - Elvira and the Party Monsters - Love the humor and art, and it's a blast to play as well!!
DMD - Indiana Jones - Best recreation of a theme in a pinball up until WOZ, captures so much so well from the movies.