When comparing Spotlight vs Keyboard Maestro, the Slant community recommends Spotlight for most people. In the question“What are the best app launchers for Mac OS X?” Spotlight is ranked 5th while Keyboard Maestro is ranked 6th. The most important reason people chose Spotlight is:
Spotlight comes packaged with OS X and iOS.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Native to OS X
Spotlight comes packaged with OS X and iOS.
Pro Intuitive
Pro Can automate nearly anything you can do in the GUI.
…including mouse clicks, typing free text or with variables and pressing keyboard shortcuts.
Cons
Con Limited customization
Allows for very little customization, not theming, and no custom scripting.
Con No longer launches applications at all in Sierra
After updating to Sierra, typing an application name in Spotlight results in "No Results" or random wikipedia matches. True even after reloading com.apple.metadata.mds.plist and adding/removing "Macintosh HD" on the "Privacy" tab. Launchpad still works.