I grew up in Brontë country - the house that Fieldhead in Shirley was modelled on was just a short walk from my childhood home, and we went there a lot. So the descriptions of the wild moors, unforgiving weather and brusque Yorkshire folk are very dear to me, and I read most of the books in my teens.
I think the best one is Tenant of Wildfell Hall. It must have been utterly scandalous at the time! But Jane Eyre has a special place in my heart; I must have read it a hundred times.
I dated a bloke called Heathcliff for a while, admittedly in large part because of his name - and he was also dark, brooding and very handsome, but fortunately not a psychopath.
I agree with pps that To Walk Invisible was superb, and I suspect pretty close to reality. I would recommend that to anyone interested in the lives of the Brontës.
I also strongly recommend Wide Sargasso Sea to any lovers of Jane Eyre who haven’t already read it. It puts a whole new slant on things and is utterly haunting.