If you're interested, here's a similar prospect about Pro Evolution Soccer on PSP, DS and 3DS.
Pro Evolution Soccer: PSP v.s. DS v.s. 3DS (Famitsu; no "The Best" included; digital included)
[PSP] Pro Evolution Soccer 2009 {2009.01.29} - 102,221 / 250,204
[PSP] Pro Evolution Soccer 2011 {2010.11.18} - 34,906 / 227,028
[PSP] Pro Evolution Soccer 2010 {2009.12.10} - 46,138 / 213,033
[PSP] Pro Evolution Soccer 2012 {2011.11.03} - 41,205 / 192,572
[PSP] Pro Evolution Soccer 2008 {2008.01.24} - 70,313 / 190,140
[PSP] Pro Evolution Soccer 2013 {2012.11.01} - 34,486 / 143,047
[PSP] Pro Evolution Soccer 2007 {2006.12.14} - 25,852 / 130,919
[PSP] Pro Evolution Soccer 2010: Aoki Samurai no Chousen {2010.05.20} - 19,703 / 130,291
[PSP] Pro Evolution Soccer 2014: Aoki Samurai no Chousen {2014.05.22} - 7,170 / 34,633
[PSP] Pro Evolution Soccer 2014 {2013.11.14} - 16,504 / 24,069
[NDS] World Soccer Winning Eleven DS {2006.11.02} - 51,491 / 181,216
[NDS] World Soccer Winning Eleven DS: Goal x Goal! {2007.10.25} - 21,505 / 103,767
[3DS] Pro Evolution Soccer 2011 3D {2011.02.26} - 26,222 / 125,488
[3DS] Pro Evolution Soccer 2014: Aoki Samurai no Chousen {2014.05.22} - 19,434 / 70,300
[3DS] Pro Evolution Soccer 2013 {2012.11.01} - 9,084 / 32,534
[3DS] Pro Evolution Soccer 2012 3D {2011.12.08} - ? / 31,088
[3DS] Pro Evolution Soccer 2014 {2013.11.14} - 10,459 / 20,333
And here's Media Create CY 2013 top 1000 numbers for some of them
[PSP] Pro Evolution Soccer 2013 {2012.11.01} - 38,388 / 167,948
[PSP] Pro Evolution Soccer 2014 {2013.11.14} - 16,976 / 53,996
[3DS] Pro Evolution Soccer 2013 {2012.11.01} - 11,365 / 86,497
[3DS] Pro Evolution Soccer 2014 {2013.11.14} - 11,444 / 56,279
Bonus: Dengeki numbers for the latest release, WE2014: Aoki Samurai no Chousen (since they should be the most up-to-date)
[3DS] Pro Evolution Soccer 2014: Aoki Samurai no Chousen {2014.05.22} - 19,267 / 85,167 (up to Week 34)
[PSP] Pro Evolution Soccer 2014: Aoki Samurai no Chousen {2014.05.22} - 8,355 / 44,246 (up to Week 30)
Also, according to Dengeki, from Week 30 to Week 34, the 3DS version of Pro Evolution Soccer 2014: Aoki Samurai no Chousen outsold not just the PSP version, but the PS3 version as well.