Notable writer/artist duos in comics?

[Hybrid]

Writers/Artists tend to work together a lot, especially if they're good friends. Sometimes, they're indeed friends. Sometimes, it's just a matter of business. Whatever the case, what are the notable examples of such duos, often doing multiple projects together or at least having a major landmark run that only seemed possible by the duo?

Some that come to mind:

Stan Lee/Jack Kirby
Marv Wolfman/George Perez
Chris Claremont/John Byrne
Tom DeFalco/Ron Frenz
Alan Moore/Dave Gibbons
Garth Ennis/Steve Dillon
Brian Michael Bendis/Mark Bagley
Kieron Gillen/Jamie McKelvie

Who else is of note?

[MRP]

Ed Brubaker & Sean Phillips

-M

[Nine Crocodile]

Scott Snyder/Greg Capullo
Tom King/Mitch Gerads

[numberthirty]

While they usually are not the first pair folks mention, Azzarello/Risso.

[Hybrid]

Grant Morrison/Frank Quitely

[Kai "the spy"]

Denny O'Neil & Neal Adams
René Goscinny & Albert Uderzo
John Wagner & Carlos Ezquerra
Kazuo Koike & Goseki Kojima

[GilGarciaJr]

Jeph Loeb/Tim Sale
Chuck Dixon/Graham Nolan

[K7P5V]

1. Stan Lee & Steve Ditko


2. Stan Lee & John Romita, Sr.


3. Peter David & Todd McFarlane

[MoneySpider]

Alan Grant and Norm Breyfogle (on Batman projects).

[CaptCleghorn]

I'm going to throw in:

DeMatteis, Giffen, and Maguire
Dave Sim and Gerhard

[GilGarciaJr]

I'll toss in:

-Paul Dini/Bruce Timm

They haven't done a lot in terms of actual comics, but the few stories they did do are usually gold.

Speaking of Dini, I'll also say:
-Paul Dini/Dustin Nguyen
-Paul Dini/Don Kramer

I just wish the Paul Dini era of "Detective Comics" lasted longer, it was a fun ride during that original run.