To set the ball rolling, here are some works or photographers I think are wonderful:
Dali atomicus by Halsman. is a wonderfully chaotic and eccentric portrait that fits well with what dali himself produced.
I am intrigued by
Sally Mann's controversial portrayals of her family. They definitely have shock factor because of the taboo nature of what they portray, but if you can get over that I think they have an honest beauty.
I also enjoy
Jane Bown's approach to photojournalism. I find it refreshingly different to the glitzy, pushy and often vulgar approach to celebrity photography taken by the paparazzi. She gets some wonderfully intimate images of powerful and influential figures, often at vulnerable moments.
Lambot and Girard's (top picture) study of Kowloon Walled city and its inhabitants. Presented with interviews with its subjects the series gave a fascinating insight in to a place and its people.
So, anyone?