If you are a designer or agency looking to build marketing sites with built-in CMS capabilities, choose Webflow. It offers pixel-level visual control and clean, standards-based output, ensuring that your designs translate well into functional websites. Just be prepared for a steeper learning curve and higher costs as you scale with CMS items and traffic.
On the other hand, if you’re a designer or founder who wants to quickly design and publish marketing sites or portfolios without diving deep into code, go for Framer. It allows for easy design and publishing on a single canvas, along with strong animations and interactions. However, keep in mind that you'll need a paid plan for custom domains and scalability, and it's less suited for complex web applications where you might need full control over code and hosting.