Quoted from wolverinetuner:My very favorite EM, Hot Tip
Another favorite, Cleopatra
(Both were made in EM and SS versions)
Cleopatra has a wonderful drop target implementation. I love the risk reward of the drops that guard the temple with the 5k behind.
Trying to think of some more which have not been said yet..
Stellar wars (Great implementation with ruleset to spell Stellar Wars).
Pantera (First game to have complete individual drop control to my knowledge?).. point to Quick Draw for the middle reset tho...
Volley (Great implementation with theme)
Someone already brought up Cheetah, but special points for the top bank (probably one of the longest Drop target shots, you can directly hit the right most with the right flipper in a straight shot). Can strafe the 5 bank in one shot from the 3rd flipper, and last, you can time the shots on the rotating star drops for an extra ball or other bonuses.
Cactus Canyon (For the great gunfight use)
Vector (Maybe the first to use drops to specifically block a ramp?)
Paragon (Great use of drops to block the left path)
Hobbit (Love the D-W-A-R-F skill shot usage)