IBM Watson Analytics vs. Microsoft Azure Machine Learning (Part 1)

Last week, IBM released a public beta of Watson Analytics, a platform for data exploration, visualization and predictive analytics. This product follows on Microsoft's Azure Machine Learning service, which provides cloud-based machine learning solutions. Interested to see how the offerings compare, I set up accounts with both services and set out to explore several datasets. For fairness, I should note that IBM's Watson analytics is in a public beta, while Microsoft's product is a significantly more mature offering. Besides relative maturity, the more striking difference between the products is the fundamentally different use cases they address.