Mine would have to be
Peter Lik - First time I saw some of his work I would swear he Photoshoped everything. But he doesn't use any editing software.
Andy Goldsworthy - Sculptor/photographer Love his work
My favorite photographers?
Masahisa Fukase- The series of photographs known as Karasu (Ravens) created by this troubled man in a depressed time of his life are to me the most soul stirring and powerful group of photographic images ever made. They detail human longing and loss thru stark images of dark birds. Hands down my favorite. Ever. Period. If you ever get a chance to purchase The Solitude of Ravens then do so.
Alvin Langdon Coburn- Master photographer, incredible pictorialist. Much of his work reaches an artistic pinnacle I can only aspire to. One of my favorite photographs ever is Scene at Wapping shot by Alvin sometime in the early 1900's.

Wapping
Edward Steichen- This mans work is firmly established in photographic history. He was an undisputed master of his craft.

Road into the valley - Moonrise. Steichen, 1904
Ralph Eugene Meatyard
Diane Arbus
Alfred Stieglitz
And for some contemporary artists, because not all good photography is history...
Sotiris Lamprou https://www.flickr.com/photos/118331246@N06/
Sumyko https://www.flickr.com/photos/fibbapalyingart/
Even Tryggstrand Impressive landscape photographer in Iceland, Faroe Islands, Norway
https://www.instagram.com/eventyr/
And as for Peter Lik....yeah. If you dont believe he edits his photos then I have some lake front property on the moon I would like to sell you for bitcoin.
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Straylightrun- "Are you for real?"
Goethe- "No, I'm a unicorn. Kudos for seeing thru the disguise."
http://photolumiere.net/
Goethe, this is a notification that you have been temporarily banned from dpreview, details of the reason are as follows: Excessive use of glitter.