The question really is, what's a useful way to determine which of two projects has a "more active community according to GitHub"? Is the number of stars/watcher

The question really is, what's a useful way to determine which of two projects has a "more active community according to GitHub"? Is the number of stars/watchers a good enough proxy to use for decision making? The projects I use are typically quite small, and my code is on Bitbucket, so I have effectively no experience in this.