I subscribed to both Science and Nature for a while but dropped my Nature subscription about 2 years ago. They constantly spin off specialty titles and limit archive access to 1997 and later. They were also adding a lot of sponsored content that wasn't clearly marked. For a comparable cost, Science allows full archive access and the publishing group has fewer titles. I'm more likely to find articles in a field I haven't heard of before. Science's sponsored content, and it does have it, is easier to spot and ignore.