Now, I'm not talking about which designer you would least likely want to take on in a fight. Or which designed the hardest shots to make.
What I mean is which designer made the games that were most difficult just to keep the ball in play.
Now I've owned or played games from pretty much every designer since the beginning of the flipper era, and some look more difficult than they really are once you get a rhythm going, but I'll be damned if Steve Kordek didn't have some kind of a mean streak in him.
Where some games keep you coming back for more because you came this close to winning, some of his early games must have gobbled up coins because you came this close to having maybe one or two good ball times.