Looks like Japan has released the sales list of their top selling manga of the past year (November 2010 through November 2011).
No surprise Shonen Jump dominated;

1. One Piece [37,996,373]
2. Naruto [6,874,840]
3. Ao no Exorcist [5,223,712]
4. Fairy Tail [4,701,596]
5. Toriko [4,665,634]
6. Gintama [4,415,491]
7. Bakuman [4,399,938]
8. Bleach [4,187,258]
9. Kimi no Todoke [4,109,481]
10. Gantz [4,056,981]
11. Shingeki no Kyojin [3,766,194]
12. Sket Dance [3,157,012]
13. Hunter×Hunter [2,922,876]
14. Nurarihyon no Mago [2,853,552]
15. Beelzebub [2,607,474]
16. Saint Oniisan [2,597,768]
17. Kateikyoushi Hitman Reborn [2,550,542]
18. Giant Killing [2,464,282]
19. Meitantei Conan [2,120,091]
20. Deadman Wonderland [1,853,198]
21. Fullmetal Alchemist [1,848,586]
22. Uchuu Kyoudai [1,800,132]
23. Ahiru no Sora [1,739,105]
24. Kuroko’s Basketball [1,712,983]
25. Ace of Diamond [1,711,607]
26. Chihayafuru [1,667,296]
27. March Comes in Like a Lion [1,640,891]
28. The World God Only Knows [1,494,817]
29. Hayate no Gotoku [1,481,743]
30. Kuroshitsuji [1,426,621]
31. Arakawa Under The Bridge [1,363,850]
32. Kyou, Koi wo Hajimemasu [1,310,002]
33. D.Gray-man [1,296,975]
34. Kekkaishi [1,281,128]
35. Suki Desu Suzuki-kun!! [1,264,317]
36. Soul Eater [1,264,217]
37. Natsume Yuujinchou [1,234,679]
38. Nodame Cantabile [1,111,747]
39. Medaka Box [1,111,444]
40. Mahou Sensei Negima! [1,103,573]
41. Ookiku Furikabutte [1,097,910]
42. Switch Girl!! [1,095,914]
43. To Love-Ru Darkness [1,067,988]
44. Hajime no Ippo [1,054,421]
45. Usagi Drop [1,042,526]
46. Shin Prince of Tennis [1,024,406]
47. Real [1,020,367]
48. Thermae Romae [1,006,323]
49. Nichijou [1,005,300]
50. Sukitte Ii Na Yo [960,150]

Say what you will about taste and what series you personally like, sales do not lie.
However this is Japan, and it stands to reason that the popularity of certain series will differ from country to country.
So what do you think? Do you agree/disagree with One Pieces absolute dominance?
What do you think a list from Australia/America would look like?

WOW! That is a huge jump (haha) from 2nd place to 1st place! That is insane! Personally I wouldn't have chosen that as the likely scale judging by sales in Australia(or at least in our store) show Naruto, Negima, and Bleach are the major sellers. One Piece sells but not THAT well!

Not a very surprising list really. I was expecting One Piece, Naruto, Fairy Tail and Bleach. Gintama and Ao no Exorcist makes sense.

But Gantz, is that really still going?

I am pretty sure Australia's list would be a switchup of One Peice, Bleach and Naruto (most like Naruto being the best seller) and the top ten including Negima, Soul Eater and Bakuman.

What really surprises me is that HunterxHunter is only 13th on that list, despite it being classified as the 'greatest shounen' of all time. Seriously.

Subsequently, here are the top 25 best selling Manga in America for 2011. Of course, One Piece didnt nearly sell as many, though they don't publish actual figures of sales, just a general list;

"Officially, the ranking has been devised based on “interviews with retailers, distributors, and manufacturers” – which when translated out of its ambiguities presumably means sales, stock, and related financial, profitable, and potential aspects."

01.) Naruto – Viz Media
02.) Bleach – Viz Media
03.) Vampire Knight – Viz Media
04.) Black Butler – Yen Press
05.) Death Note – Viz Media
06.) Blackbird – Viz Media
07.) Rosario + Vampire – Viz Media
08.) Fullmetal Alchemist – Viz Media
09.) Dragonball & DBZ – Viz Media
10.) Soul Eater – Yen Press
11.) One Piece – Viz Media
12.) Maximum Ride – Yen Press
13.) Alice in the Country of Hearts – Tokyopop
14.) Hetalia – Tokyopop
15.) Yu-Gi-Oh! – Viz Media
16.) Pandora Hearts – Yen Press
17.) Bakuman – Viz Media
18.) Fruits Basket – Tokyopop
19.) Dendeki Daisy – Viz Media
20.) D. Gray Man – Viz Media
21.) Yotsuba! – Yen Press
22.) Ouran High School Host Club – Viz Media
23.) Shugo Chara – Del Rey Manga
24.) K-On! – Yen Press
25.) High School of the Dead – Yen Press

Sources:
http://seventhstyle.com/2011/08/19/top-25-manga-series-in-america-q1-q2-2011/
http://www.icv2.com/articles/news/20859.html