Yes - Aurich.... Paragon is special... Golden Cliff, Valley of Demons, Beasts Lair and the Waterfall - I like it! It's the only keeper for me, which does not impress me with an outstanding gameplay.
Here's one of my favorites:
Voltan Escapes the Cosmic Doom
VoltanPF.jpg
Source:http://www.vpforums.org/index.php?showtopic=2004&page=4
I love the morbid look on the one hand and in contrast vivid expression on the other hand. the choice of color is great as the little "ornaments" all over the playfield. David Christensen at his best!
The two runner ups are the already mentioned Centaur and Fathom.
Centaur - black and white playfield with some red typos, was that ever done before or after? Colors come from the inserts, bumper caps, posts and some plastics... Great overall look being the host of a machine which was way ahead of its time like (maybe) no other. Another "winner" by Paul Faris (see Paragon).
cent05.jpg
Source: http://classicplayfields.com/photo74.html
Fathom - colorful - but which color scheme was there originally? My nice original Fathom is also more "green", but if you take a look at the flyer... it's more "blueish"... Anyway - Greg Freres did so many designs (still doing), but Fathom is really special. So many details, so many things to explore. Take a look how well this is integrated... see out/inlanes. And on top of it... the gameplay of this machine is the "pride of creation" of this early solid state generation (from my point of view )
20140902-132921.jpg
Source: http://www.pinballshark.com/?p=1727