I like the top one better actually
I don’t like the mass of white space. The poster itself is easy to replace. Often times I do actually store multiple different art for book/shows/movies on my server and I switch them out if or when I feel like it.
I’ve become adept enough from making cover art for fan edits that the hardest part in making a good cover is finding decent HD posters that crop well to a square shape. Adding text is super easy.