I have to agree.... It's pretty crazy that Oursler doesn't even make the vote. That guy is CRIMINALLY under appreciated and his games are almost always mentioned when people talk bang-for-the-buck pins.
You'd be hard pressed to find a designer that did more during Williams SS/DMD heyday. That dude was a machine...cranked out 2 to 3 machine designs a year....and almost all of them are pretty good., including a few that were groundbreaking or at least important to the history of pinball.
Of the 12 machines I own (or did), 5 of those were his designs. One thing you can say is that a lot of his designs are "different" and don't rely on a "signature feel". I think that's a good thing.
Gorgar, Solar Fire, Space Shuttle, Comet, Bad Cats, Pinbot, Cyclone, Dr Who, BSD, Dirty Harry, Jack Bot, Junk Yard.... Anyone?