When choosing between Vue.js vs. Next.js, the key factor is whether you are building an app with dynamic content or a static website. If your application requires frequent updates and data that changes often, Vue.js might be the better option due to its reactive nature and ability to quickly update information on the page without reloading the entire page. On the other hand, if your application does not need frequents updates and is more static in nature, Next.js might be a better choice due to its increased efficiency in server-side rendering and SEO-friendly React components. Ultimately, your decision should come down to the specific requirements of your application and which framework best fits with those needs. React, with its component-based architecture, may offer the flexibility needed for an ever-changing application, while Vue.js's reactive nature makes it easier to quickly update information on the page without reloading completely each time. If you need lots of customization or additional features beyond React's core functionality, then Next.js could be the ideal choice for building fast React applications that are optimized for SEO.