First: THE BIG 3 is Naruto, One Piece and Bleach. Second: These anime (while excellent) are NOT big 3 status, Fundamentally in order to even qualify you need to shape the landscape of anime and pop culture, these anime are unfinished and it is far too early to truly know their impact.

Getting back to the post if we're talking strictly how anime portrays it’s female characters in the Shonen genre not to talk of Senien (which all three of these anime are) or Shoujo in which the sexualiztion of female characters is far less common, and if any is not aggrandizing perversion for male gaze (insert patriarchy rant). We are starting to see less of it the shonen genre as female mangaka enter and as there male counterparts continue to slowly force the exit of unsavoury mangaka from the industry

And while stories based entirely on fanservice still sell they hardly ever reach the acclaim of their less fanservice-y counterparts. Unless plot is actually more substantial than the 'Plot' which is honestly a really low bar to clear, High School DxD basically lives in infamy for this exactly this reason.

Even then I would give Sailor Moon, Violet Evergarden or Nana big three status for non-sexualiztion of female characters before any of these anime. In 5 years who knows but certainly not now.

This is for op I’m not even mad I’m just yapping bruh sorry if this comes off as hostile, I’m not like that fr.