Here's mine:
1. Jack Kirby (New Gods, FF, Silver Surfer)
2. Gardner Fox (Hal Jordan, Barry Allen, Katar Hol, Ray Palmer)
3. Chris Claremont (Phoenix Saga and 20yrs of X-Men)
4. Jim Starlin (Thanos Saga, Dreadstar, Warlock)
5. John Byrne (FF, X-Men, Fourth World, even Man of Steel to an extent)
6. Marv Wolfman (Crisis, Trigon, Raven)
7. John Ostrander (The best writer The Spectre ever had... very cosmic)
8. Neil Gaiman
9. Jim Shooter and Paul Levitz (Legion's finest)
Who are yours?