Choosing an ANN tool requires comparing the features and capabilities of different libraries and frameworks. Libraries are collections of functions and classes that provide low-level or high-level operations for building and training ANNs, while frameworks are platforms that offer an integrated environment for developing, testing, and deploying ANNs. When selecting an ANN tool, you should consider its support for different types of ANNs, activation functions, loss functions, optimization algorithms, regularization techniques, hardware and software configurations, data formats and sources, visualization and debugging tools, scalability and performance options, and interoperability and compatibility options. Popular libraries and frameworks for ANNs include TensorFlow (developed by Google), PyTorch (developed by Facebook), and Scikit-learn (developed by the Python community). TensorFlow provides a comprehensive platform for building and deploying ANNs with a high-level API called Keras for simplifying the development of ANNs. PyTorch offers a dynamic platform with a high-level API called Torchvision for simplifying the development of ANNs for computer vision. Scikit-learn provides a simple and efficient platform for building and training ANNs with various preprocessing, transformation, and loading methods for different types of data.