The Creality slicer is just an older version of Cura re-badged
Cure holds about 80% of the market, Prusa comes in next, the rest hold a few %.
Cura and Prusa are always changing, leap frogging on most items but over all Cura has more features and is updated more often. Prusa does have a couple of things that Cura doesn’t but Cura will catch up at some point. It is just a personnel preference. Some people think the layout of Prusa is better but I like the Cura layout better.
Some people think Simplify 3D is better then all others but it costs$$$$$ Others think Slic3r (that’s not a typo) is better, it’s free.
There are many others and some CAD programs now include a slicer function. Many CAD programs part files can also be opened in Cura directly, by using the appropriate plugin, without exporting as an STL or other type of file. If Prusa Slicer doesn’t do this now I’m sure it will soon.