Love this era. Not hard to tell if you look at my list.
Flash was my first experience with Pinball sadomasochism. Our local Pizzeria had one when I was a kid and let me tell you, most kids stopped begging their parents for quarters to play it right quick. But I could never get enough of Ming abusing me and then inviting me to 'Try Again, Earthling'. Learning how to plunge up a proper serve to the upper flipper was probably my first ever pinball lesson.
Skateball is just straight up Bally bliss to me. I am completely in love with bottom of that machine and if it had 3-4 Skill Shots in it...hell I could put 5 in there without blinking an eye...it would be a top 3 machine for me. I am always trying to make a clean plunge to the outside-inlane and hit the saucer or the spinner. Even without a special award, it's just too much fun to do to not try.
It is always one I will play multiple games on in any lineup I see it in. I will sometimes burn most of my night on it if it is setup well.
Elektra is one I haven't seen since I was a kid and can't say I remember much about it at all. Nothing really about its ruleset or its gameplay.