Weeeeellll .... I have worked my way through almost all the available books and even seen St. Ansel's work up close and personal. I stipulate that he was a fine craftsman and educator that brought repeatability and rigor to the field.
However, his prints, while lovely, are not particularly remarkable, certainly by comparison, say, to Edward or Brett Weston. I daresay most of the experienced silver printers here (and elsewhere) are able to produce prints of similar quality, noting that the aesthetic would be rather different. Ironically, the ability to print at that level is directly attributable to his care in educating the rest of us on how to do so.
He did, of course, produce some memorable work, "Moonrise" foremost among them in my opinion. But even that was a bit of an accident and is reputed to be miserable to print, given that it was badly underexposed. So even St. Ansel was subject to the laws of large numbers - of the thousands of prints he made, we treasure but a special few.
The one sense in which is work IS remarkable is that he had the equipment built for very large prints. Today finding paper, let alone a projection method to make prints six feet wide would be a herculean undertaking.
P.S. For those who've never had the pleasure, Paula Chamlee at Lodima Press is selling a beautiful set of books of Brett Weston's work. I have one in the series and the production values are very fine and the images are really strong.