I think that he had the right because he is an american citizen, thus he had the first amendment right to freedom of speech. Below is a list of all of Stephen King's books.
1960 - People, Places, And Things - Volume 1 (limited edition with Chris Chelsey)
1964 - The Star Invaders (limited edition)
1974 - Carrie
1975 - Salem's Lot
1977 - The Shining
1978 - Night Shift (stories)
1978 - The Stand
1979 - The Dead Zone
1980 - Firestarter
1981 - Cujo
1981 - Danse Macabre (nonfiction about horror)
1981 - Roadwork
1982 - Creepshow (comic book, illustrated by Bernie Wrightson)
1982 - The Dark Tower I: The Gunslinger
1982 - Different Seasons (novellas)
1983 - Christine
1983 - Pet Sematary
1983 - Cycle of the Werewolf
1984 - The Talisman (written with Peter Straub)
1985 - Skeleton Crew (stories)
1985 - The Bachman Books (novel collection)
1986 - It
1987 - The Eyes of the Dragon
1987 - Misery
1987 - The Dark Tower II: The Drawing of the Three
1988 - The Tommyknockers
1988 - Nightmares in the Sky (Photo book with text by King)
1988 - Dark Visions
1989 - The Dark Half
1989 - Dolan's Cadillac (limited edition)
1989 - My Pretty Pony (limited edition)
1990 - The Stand: The Complete & Uncut Edition
1990 - Four Past Midnight (stories)
1991 - Needful Things
1991 - The Dark Tower III: The Waste Lands
1992 - Gerald's Game
1993 - Dolores Claiborne
1993 - Nightmares & Dreamscapes (stories)
1994 - Insomnia
1995 - Rose Madder
1995 - Umney's Last Case
1996 - The Green Mile (originally published as a monthly serial consisting of six parts: The Two Dead Girls, The Mouse on the Mile, Coffey's Hands, The Bad Death of Eduard Delacroix, Night Journey, and Coffey on the Mile)
1996 - Desperation
1997 - Six Stories (stories)
1997 - The Dark Tower IV: Wizard and Glass
1998 - Bag of Bones
1999 - Storm of the Century
1999 - The Girl Who Loved Tom Gordon
1999 - The New Lieutenant's Rap (limited edition)
1999 - Hearts in Atlantis
1999 - Blood and Smoke (audio book)
2000 - Riding the Bullet (electronically published novella)
2000 - The Plant(electronically published)
2000 - Secret Windows
2000 - On Writing: A Memoir of the Craft (nonfiction autobiography)
2000 - Dreamcatcher
2001 - Black House (written with Peter Straub)
2002 - From a Buick 8
2002 - Everything's Eventual: 14 Dark Tales
2003 - The Dark Tower I: The Gunslinger (revised edition)
2003 - The Dark Tower V: Wolves of the Calla
2004 - The Dark Tower VI: Song of Susannah
2004 - The Dark Tower VII: The Dark Tower
2004 - Faithful: Two Diehard Boston Red Sox Fans Chronicle the Historic 2004 Season
2005 - The Colorado Kid
2006 - Cell
2006 - Lisey's Story
2008 - Duma Key
2008 - Just After Sunset
As Richard Bachman
1977 - Rage
1979 - The Long Walk
1981 - Road Work
1982 - The Running Man
1984 - Thinner
1996 - The Regulators
2007 - Blaze
Now let's compare that to the number of books Smeyer has published
2005-Twilight
2006- New Moon
2007- Hell on Earth
2007- Eclipse
2008- Breaking Dawn
2008- The Host
now let's compare the awards that they have recieved
Stephen King: King has won 8 Bram Stoker awards, 6 Horror Guild awards, 5 Locus Awards,[48] 3 World Fantasy Awards[49] (including a Lifetime Achievement Award in 2004), the 1996 O. Henry Award, a Hugo Award in 1982 for the non-fiction book Danse Macabre. He was given a Lifetime Achievement Award in 2003 by the Horror Writers' Association and a Medal for Distinguished Contribution to American Letters from the National Book Foundation in 2003. In 2007, King received an award for lifetime achievement from the Canadian Literary Guild, the only non-Canadian to be bestowed this award.
Stephenie Meyer: oh look, I can't find any. Well looks like we found out who the better author is.