Balls A Poppin' - best multi-ball, and in a woodrail, at that!
Card Trix - love the challenge of getting to the specials, and the double roll-over special on the Ace lane is kinda magical
Bow and Arrow - I like spinners, and this one is especially well-integrated in game play to maximize the side kick-out hole bonus
Majorettes - Fun to light the sequence, and especially challenging since the last bumper is BEHIND the flippers
Gottlieb Paradise - Lots going on - I like the conglomeration. Target sequence, cascading kick-out holes with variable values based on under-playfield roto, first return lanes, plus backbox animation.
Didn't list a drop target game, as tough to choose between El Dorado / Fast Draw / Atlantis / Jacks Open - each has lots of drops with it's own unique feature