Deep Learning Frameworks | TensorFlow , PyTorch and Keras - what to use?

Links and references
Feature Comparison Table : https://en.wikipedia.org/wiki/Compari...
Popularity and differences article : https://thegradient.pub/state-of-ml-f...

Pytorch:
Pytorch homepage: https://pytorch.org/
Pytorch mobile https://pytorch.org/mobile/home/
Pytorch tutorial official: https://pytorch.org/tutorials/
Pytorch Book (Free) : https://pytorch.org/deep-learning-wit...

Tensorflow:
Tensorflow homepage : https://www.tensorflow.org/
Tensorflow Lite for mobile: https://www.tensorflow.org/lite/conve...
Tensorflow tutorial official: https://www.tensorflow.org/tutorials
Book Deep learning with Python (2nd edition) (Paid) : https://www.manning.com/books/deep-le...
Book Hands-on Machine Learning ( Subscription) : https://learning.oreilly.com/library/...