Depends on your goal. Ultimately, the three tenets are flexibility, speed and speed of development. All frameworks make tradeoffs between them. Researchers use

Depends on your goal. Ultimately, the three tenets are flexibility, speed and speed of development. All frameworks make tradeoffs between them. Researchers use slower (in both senses) frameworks to implement weird new ideas that require the flexibility while engineers typically use faster (in both senses) frameworks that allow them to have a performant and reliable model for production deployment.