Jack Burton wrote:Grayson I have to disagree with you about Green Lantern making Johns as big a writer as he is.
He was at his peak of writing around 2005 and you can see that by the major titles he earned because of Flash and JSA. Green Lantern, Superman, and Infinite Crisis he all got those books around the same time.
Green Lantern might have improved his reputation but he was already DC's biggest gun before he got the book.
It's been more of a steady climb to become DC's biggest gun than people remember.
This list only includes important titles or ones he started long runs (over 10 issues) on. This is not comprehensive (no Thing:Freakshow type stuff here
1999 Stars and S.T.R.I.P.E
2000 JSA, Flash
2002 Hawkman, Avengers (Marvel)
2003 Teen Titans
2004 Green Lantern (Green Lantern Rebirth #1 Cover Date Dec 2004)
2005 Countdown to IC (May 2005, co-wrote with Greg Rucka and Judd Winick!
2005 Infinite Crisis (#1 Cover Date Dec 2005)
2006 Action Comics (One Year Later, started May 2006)
2006 52 (co-wrote with Grant Morrison, Greg Rucka, and Mark Waid)
2007 Justice Society of America, Booster Gold
2009 Blackest Night, Flash (Flash Rebirth + new Barry Allen series)
2010 Appointed DC Chief Creative Officer, Brightest Day (co-wrote with Peter Tomasi)
2011 Flashpoint, Aquaman, Justice League
2013 Justice League of America
He was becoming one of the big guns in 2005-2006, which is why he became one of the co-writers on 52. He clearly had rivals during this period - you could definitely point to Grant Morrison as being a bigger deal at the time due to his past work with DC and Marvel.