Not sure what you mean re: harder to get where you're located. There is only one place to get them, Prusa3D, and they ship internationally.
Better in almost every way. Better silent drivers, better dual gear direct extruder instead of the bowden, precision rods/bearings instead of aluminum extrusion and plastic wheels, 49 point automatic bed leveling, automatic print bed level correction, no cheap homing switches (does it via motor current detection), and just MUCH better print quality overall. Then there is simple Octoprint integration, belt tension reporting, extruder crash detection, etc.
You look on YouTube, there are videos "The first 20 mods to do on your Ender 3"- and doing all of those still doesn't achieve the print quality and features of a Prusa. You also get a 100% warranty on Prusa printer parts, unlike Creality which will tell you to pound sand :). Ender 3 is a "chinesium" ultra budget printer- will it work? Most likely. Is the print quality and user experience even close to a quality printer? Nope.