Yiddish is the first language of Jewish Williamsburg. And they generally read Yiddish language publications much more than English language periodicals.
Both the men and women, and the boys and girls, speak (and read) primarily Yiddish. That being said, the girls understand English better than the boys.
It depends a lot on the school the girls go to (or went to) and the home environment. Also, once one gets used to reading english, yiddish becomes more cumbersome to read EVEN IF YIDDISH IS HER FIRST LANGUAGE. Besides weeklies such as das yiddishe licht, oneg shabbos etc. there are monthly yiddish periodicals such as maalos and I think der blick. I’m not sure about der shtern because there was a whole ruckus that it’s just history and politics with no Jewish values. And nothing compares to the quality of say mishpacha, but they are all more tzniusdik and the hashkafa is definitely anti-israel.
I believe most men prefer yiddish, although there are always exceptions, especially if it’s “in house”.
IMO Mallos trumps them all, even the Hebrew and English ones. It was the first to address mental illness, especially Borderline Personality Disorder.
Last Purim there was a Willi family dressed up as “Shmoigers”, the all time favorite goofy characters of the kids section – everyone recognized them – it was hilarious!
I also enjoy the “Shtern”. It’s well written and informative, but it’s mainly secular in contents.