Weirdly, I use both Alfred and Raycast 
Raycast
Because of visual results. Sometimes I like to ping a website, find out the key of a song, see my next events and act on them with the keyboard, geolocate an IP, find an image on Unsplash, see the definition of a word etc.
I can do all of those and see non-structured results in the same Raycast window, without having to leave the current app. That wouldn’t be possible with Alfred’s row-based approach.
I also like the hotkeys discoverability in Raycast, and strive to do the same in my apps
Alfred
Because it’s super snappy! Raycast feels just a bit more sluggish in its UI, not sure why.
File search and acting on files is a lot more intuitive in Alfred, and the default results are tweaked to my needs so I usually don’t even need to activate a workflow. I just ⌘ space and search for an app/movie/document/image/contact/bookmark etc.
Also, the new Universal Actions feature really makes this acting on files thing so much more useful.