I am really fond of this book and I sometimes reread some parts. 
 I discover it first as a child, I actually only had the first part of the book in french, and I am quite sure it was edited in a way that let it seem less preachy and less christian. 
 But I liked also the second part, first read it in french, though I resented that the first part said they all married when... well you know (view spoiler)[ Beth's death, and at that time I didn't understand why Jo married an old professor... well I am still not sure to get it. (hide spoiler)]. 
 Later I finally bought an original book, and it didn't disappoint though it was more moralistic that I remember.