What surprised me about this was how much I liked Beth. Based on reviews, I wasn't expecting her to make much of an impression at all. But unlike other movie versions, this Beth could be playful and sometimes resentful. I loved how during their trip to the sea, she said to Jo: "I'm very sick, so you have to write."
I liked Claire Danes's Beth from 1994, but she always seemed so stiff, awkward, and serious. The 1949 Beth faded into the woodwork, and I can't remember anything about the other Beths I've seen. The 2019 Beth seems like she's part of the sisters unit, not just someone expected to die later in the story.
On the other hand, I felt like this Laurie was the weak link of the movie. Even though he is one year older than Florence Pugh and one year younger than Saorise Ronan, he always seemed like a teenager next to them, and never came across as a desirable match. That he is still one of the stronger Lauries (Christian Bale being the best) says a lot about how bad the Laurie character has been over the decades. Peter Lawford's colorless Laurie from the 1949 movie comes to mind.