I'll second Robocop being a fun game, albeit very straightforward rules-wise. That does not make it any less enjoyable "The wrecking crew is here! The wrecking crew is here!"
WWF is also a very fun game that I am surprised doesn't get the same amount of love some of the other titles of the era.
GnR is stacked to the gills with features, but why would you go for anything but the very achievable band multiball over and over again?
JP is also a really fun game with cool shots.
Favorite DE: TFTC
Least Favorite DE: Playboy 35