dotcommon is a crawler that is built to answer questions What are the most common Bash aliases?, What are the most common Vundle plugins for Vim?, etc. It searches GitHub for 1000 most recently edited configs (to follow trends) and counts such things.
Disclaimer: the project isn't run by a data scientist and the numbers below should be interpreted in the context provided above: 1000 most recently edited configs hosted on GitHub. Make any further assumptions on your own risk. See these slides if you look for a serious research.