Who are the best Directors based on work in the last decade ?

I made the proviso about the last 10 years because i feel there are a few Directors living off very old past glories (e.g. Tarantino)

I don't think you can go past Christopher Nolan. I still rate David Fincher based on his recent work

and for me Jon Favreau

For me, it's mostly the same as for the last 20 years:
Fincher
Coen Bros
Scorsese
Tarantino
PT Anderson

I like Nolan's output, but he has a good bit of growing to do as a director. While Tarantino's output has been more over-the-top revenge flicks, I've liked them all a lot and they've all been well directed.

David O'Russell
Martin Scorcese (duh!)
Ben Affleck

Steve McQueen
Michael Haneke

I would add Alfonso Cauron, but I'd like to limit this to directors with more than 2 films in the last decade.

Lars Von Trier
Pedro Almodovar
Clair Denis
David Cronenberg
Andrew Dominik
Nicolas Winding Refn
Carlos Reygadas
Xavier Dolan
Shion Sono

I agree with most of those mentioned but here are some more...

Edgar Wright
Kim Jee-woon
Park Chan-wook
Guillermo del Toro
Darren Aronofsky
Jason Reitman
Takeshi Miike
Denis Villeneuve
Jean-Pierre Jeunet

Chris Miller and Phil Lord fo sizzle.

Joss Whedon

Johnnie To

2014 Don't Go Breaking My Heart 2
2013 Blind Detective
2012 Drug War
2012 Romancing in Thin Air
2011 Life Without Principle
2011 Don't Go Breaking My Heart
2009 Vengeance
2008 Sparrow
2008 Linger
2007 Mad Detective
2007 Triangle
2006 Exiled
2006 Triad Election
2005 Election

Only movie on that list I know is Election. Reese Witherspoon was pretty good in it.

Francis Ford Coppola
Aaron Katz
Rick Alverson
Bruno Dumont
Jeff Nichols
Kelly Reichardt
Werner Herzog
James Wan
Paul Thomas Anderson
Denis Villeneuve
Richard Linklater
Richard Curtis

George Lucas for the films he's directed over the 10 year span of 2006-2015.

I would add Duncan Jones to the "2 films or less" list, too.

The only films of his I have any desire to revisit.

Kim Ki-duk
Dardenne Brothers
Jacques Audiard
Jim Jarmusch

You're out of your freaking mind. DJANGO and INGLOURIOUS BASTERDS rank with the best of Tarantino's work and, in my book, qualify him as the only American director working today who belongs on such a list.

For foreign directors the list would include Jia Zhangke from China (THE WORLD, A TOUCH OF SIN) and Hirokazu Koreeda from Japan (LIKE FATHER LIKE SON). The one Japanese animator I would put on that list is Mamoru Hosoda (SUMMER WARS, WOLF CHILDREN). I would not include Hayao Miyazaki because the last worthy film of his was SPIRITED AWAY (2001).

David O Russell
Christopher Nolan
David Fincher
Clint Eastwood

These directors have made mostly good to great stuff, with the occasional crap movie, and haven't been mentioned:

Spielberg
Woody Allen
Soderbergh
Ang Lee
Sam Mendes
Rian Johnson
Danny Boyle
Joe Wright

I'd say affleck belongs on the list for the fact that he has directed 3 movies, and all three were critic darlings.

Apichatpong Weerasethakul

okay I know some of us were going with obscure directors, but now you're just making up names.

Cornpatch Mahoney
Mevdar Rhineback
Hecky Shinhardt
Pepal Dismert
Brett Ratner jr

I love Django Unchained and all but it has some issues. And not having Sally Menke was probably a big part of it. She really helped Tarantino out in getting his movies to flow so goddamn well.

Wes Anderson has been pretty stellar for awhile now, but keeps perfecting with each new movie...