The Trinity: McLean, Confente, Moulton. The first two died young. Dave Moulton is alive, but hasn't built bicycles in years.
Some time ago I wrote a snippet about Dave. He is an interesting man. Originally he was a bicycle builder in England who emigrated to America to join the Carlsbad Masi group in California, which spawned most of the west coast bike builders. He went on to become a composer/musician and novelist. Later in life he found himself without a bicycle. Records indicate that although Dave made several thousand production frames, he only made 216 top custom frames and only 15 were his size. A group of his fans found a needle in a haystack, restored it, and presented it to him. The pictures and copy below are from Jack Gabus. Although he refers to this as an American gem, the headtube would seem to indicate that this one was actually made in England. (See Gabus comment)
(Note: Eddy Merckx rode Colnagos in his prime before having a falling out with Ernesto and going over to DeRosa. Later his name was licenced to three other companies besides his own. So you can get a bike painted Molteni orange with blue trim and EDDY MERCKX emblazened on the downtube tube, manufactured by half a dozen different companies with different skill levels. The Colnagos are the "real" ones, with DeRosa a close second. IMHO.)