I LOVE all of these albums. They are my favourites from these particular artists.

So, yes I would say 1997/1998 was a great time in pop music for females.
Fast forward to 2014/2015 and we have Rebel Heart/Kiss Me Once/Vulnicura/Me. I Am Mariah/Unbreakable
I can't really think of a time where the new generation came close.
I suppose 2010/2011 was Teenage Dream/Animal+Cannibal/Femme Fatale/Born this Way/4
But I don't think that's anywhere near as good as the 1997/1998 period to be honest.