I'm surprised to see Carousel pop up so often on the "least favorite" lists here. It's my favorite Rodgers & Hammerstein show by far. I think it's the most complex and multilayered of their works, and filled with some of the team's most idiosyncratic writing.
To say that Billy is allowed into heaven despite beating his wife and daughter and committing suicide is a misreading of Act Two, and frankly, the entire show.
Have you ever loved someone who is wrong for you, but you just cannot help yourself? Ever see a child go out and make the exact same mistakes made by their parents? Ever feel a sense of anger and frustration when you just can't communicate what you really think and feel in your heart? Have you ever hurt someone you love and regretted it immediately after you did it? All of these strike me as some hard truths of life that are what Carousel is really about.
Billy is a well-intentioned thug and failure. He's a lout who hopes for better things, but has a cycle of striking out at the people who love him most. He has romantic and poetic aspirations, but resorts to violence when he cannot make himself heard. He is initially not let into heaven, because he has led a worthless life. When he returns to earth, it is to perform a selfless act, which he tries to do, and fails yet again. In utter dejection and futility, he leaves behind the star and confesses his pure, unadulterated love for Julie, which brings comfort to her and redeems him.
I'm not sure how those who are citing Carousel on their least favorite list have experienced it. If it's through the movie version, which cuts some important songs, gives away the narrative in the opening moments, and is generally a ham-fisted treatment of the material, you really haven't seen Carousel.
"Gif me the cobra jool!"