From Contento's Index to Science Fiction Anthologies and Collections:

Top Ten Authors with the Most Entries:

1. (433) Bradbury, Ray
2. (338) Asimov, Isaac
3. (255) Ellison, Harlan
4. (254) de Camp, L. Sprague
5. (238) Anderson, Poul
6. (218) Bloch, Robert
7. (202) Aldiss, Brian W.
8. (189) Silverberg, Robert
9. (186) Leiber, Fritz
10. (167) Malzberg, Barry N.

Top Ten Most Reprinted Stories:

1. 27 Asimov, Isaac - Nightfall

    

2. 26 Ellison, Harlan - "Repent, Harlequin!" Said the Ticktockman
   26 Wells, H. G. - The Star
   26 Bradbury, Ray - The Sound of Thunder

    

3. 24 Aldiss, Brian W. - But Who Can Replace a Man?

    

4. 23 Clarke, Arthur C. - The Nine Billion Names of God
   23 Clarke, Arthur C. - The Sentinel of Eternity
   23 Simak, Clifford D. - Desertion

    

5. 22 Bradbury, Ray - There Will Come Soft Rains
   22 Godwin, Tom - The Cold Equations

    

6. 21 Clarke, Arthur C. - The Star

    

7. 19 Ballard, J. G. - Billenium
   19 Keyes, Daniel - Flowers for Algernon
   19 Leinster, Murray - First Contact

    

8. 18 Bixby, Jerome - It's a Good Life
   18 del Rey, Lester - Helen O'Loy
   18 Ellison, Harlan - I Have No Mouth, and I Must Scream

    

9. 17 Blish, James - Common Time
   17 Brown, Fredric - "Arena"
   17 Clarke, Arthur C. - History Lesson
   17 Merril, Judith - That Only a Mother
   17 van Vogt, A. E. - The Monster
   17 Wells, H. G. - The Man Who Could Work Miracles

    

10. 16 Asimov, Isaac - Strange Playfellow
    16 Bradbury, Ray - Million Year Picnic
    16 Heinlein, Robert A. - Roads Must Roll
    16 Le Guin, Ursula K. - Nine Lives
    16 Silverberg, Robert - Sundance
    16 Vonnegut, Kurt, Jr. - Harrison Bergeron