I've split the "end of 2011/12 - start of 2012/13 positional rankings" into the following:
Forwards, which will be mostly strikers but maybe also some players here and there who people may view as wingers or attacking midfielders, but if they are generally the most attacking players on their teams I've included them here. Goalscorers.
Attacking midfielders/Wingers I've combined since there is so much positional overlap between those players. Some of the most goalscoring central midfielders will also be included here as well as among the other midfielders.
Midfielders will be primarily central midfielders but also various all-rounders capable of wide-play or in primarily defensive or attacking roles. Some will also be ranked as attacking midfielders.
Centrebacks almost goes without saying but as usual be aware a few has also recieved ranking boosts because they're also good fullbacks.
Fullbacks like with the wingers both left and right sided players.
The top 32 Centrebacks in the World (end of 2011/12 - start of 2012/13):
1 Thiago Silva - Brazil - Milan
2 Sergio Ramos - Spain - Real Madrid
3 Vincent Kompany - Belgium - Manchester City
4 Mats Hummels - Germany - Dortmund
5 Nemanja Vidic - Serbia - Manchester United
6 Carlos Puyol - Spain - Barcelona
7 Laurent Koscielny - France - Arsenal
8 Gerard Pique - Spain - Barcelona
9 Giorgio Chiellini - Italy - Juventus
10 Eric Abidal - France - Barcelona
11 Jan Vertonghen - Belgium - Ajax/Tottenham
12 Pepe - Portugal - Real Madrid
13 Branislav Ivanovic - Serbia - Chelsea
14 Rio Ferdinand - England - Manchester United
15 Thomas Vermaelen - Belgium - Arsenal
16 David Luiz - Brazil - Chelsea
17 Adil Rami - France - Valencia
18 Neven Subotic - Serbia - Dortmund
19 Lucio - Brazil - Inter/Juventus
20 Fabricio Coloccini - Argentina - Newcastle
21 Younes Kaboul - France - Tottenham
22 Dede - Brazil - Vasco da Gama
23 Daniel Agger - Denmark - Liverpool
24 Ricardo Carvalho - Portugal - Real Madrid
25 Holger Badstuber - Germany - Bayern München
26 John Terry - England - Chelsea
27 Mamadou Sakho - France - PSG
28 Andrea Barzagli - Italy - Juventus
29 Juan - Brazil - Roma/Internacional
30 Jonny Evans - Northern Ireland - Manchester United
31 Mapou Yanga-Mbiwa - France - Montpellier
32 Hugo Campagnaro - Argentina - Napoli