I think Wenger's favoritism on Ramsey and Ox is pretty obvious???
Despite of form, Wenger would give Ramsey a license to play... to play him as CAM, RM/RW, CM/DM, even a couple of times as RB... Several times Ramsey was just in a very bad form and in a slump but Wenger just kept playing him.
No need to mention Ox's injury record here... and I believe his time on the treatment table is not that "far less" that Serge. Whenever he was not injured, Wenger also would find time for him to play, as a rotation, or as a sub. He was/is consistently getting exposure and appearance, and he was also getting the playing time without "outperform" his counterparts.
For the past few seasons, how many times we screamed at Wenger and asked him to bench Ramsey and Ox but we were still seeing them on the field, and hurting our chance to win??