Awesome scikit-learn machine learning algorithm cheat sheet, by Andreas Mueller.
I have always found that good science is also aesthetically appealing. The same is true for algorithms, as expressed beautifully in CLRS:
“A good algorithm is like a sharp knife – it does exactly what it is supposed to do with a minimum amount of applied effort. Using the wrong algorithm to solve a problem is like trying to cut a steak with a screwdriver: you may eventually get a digestible result, but you will expend considerably more effort than necessary, and the result is unlikely to be aesthetically pleasing.”