seeker - Some aren't that bad. And many aren't any worse than modern stories (there's just as much classism and othering in Harry Potter, and at least the overt morals and aims in EB are worthy of emulation even if the subtext isn't - compare to lots of modern stories where bullies don't get their come-uppance at the end, or appearances are valued above all, like those bloody jewel fairies).
Also I plan to talk to my children about history and how values have changed - by the time they're reading EB or other stuff, they'll be at school hearing about the transatlantic slave trade and other religions and all sorts, so realising that middle England hasn't always been perfect but used to be very different from London today is going to be important.
Yes they're all very similar - though I thought EB just churned them out herself, unlike Carolyn Keene/Franklin W Dixon who were teams churning out Nancy Drew/Hardy Boys. This isn't a bad thing when children are building confidence in reading and simply need practice. They might even learn a new word or two per book.
I admit I did look at the Secret Seven when my parents dumped them on me recently and decided they were too sexist with not enough plot to make up for it, but I'm keeping the first few Famous Five, a couple school ones, and the R Mysteries, which were all better than many. And her retellings of Tales of Long Ago and Brer Rabbit and Arabian Nights, which are all good introductions to the classics.
My pet peeve is the huge number of people including published journos referring to 'Mallory Towers' - there's only one L!!!
And it's Gwendoline, not Gwendolen.
I actually ended up at a boarding school rather like Malory Towers (huge surprise: one day my parents sat me down, said we were moving abroad, and I had to choose a boarding school from what ended up being a shortlist of two!), and it was a great relief that actually you could be crap at games and still have a good time. :)