SimCity 2000, over the years, has been ported to a variety of platforms, in varying qualities. Of the computer versions, there's basically six main variants from what I can tell:
The problem is that the most "common" version, the version you can legally buy, is DOS Version 1.01, the worst of the computer versions (through GOG and others). While it admittedly it does have a few interesting features over the 1.0 Mac version. The Mac's main advantage is better music off the shelf, higher resolution (in the form of a bigger window size), and a new "all money, all items" cheat.
However, that's about where the DOS' advantages end. The first immediate thing to notice is that it sounds horrible because DOSBox by default doesn't have sound cards built in. You can correct this by adding SoundBlaster ROMs to DOSBox, but that defeats the purpose of "legality" because those ROMs are still copyrighted by Creative Technology, so congratulations, you're a pirate either way. The other thing is that the Mac version got a Version 1.1, which was a small collection of bug fixes, QoL features, and other improvements (which were implemented in Windows 1.0) but there isn't a "v1.1" for DOS. (There is a "v1.1" DOS version but it just is a patch for a few odd processors that didn't run the game for some reason).
Unfortunately, there's no "definitive" port to SimCity 2000. EA still has the source code locked up, and your other options aren't a whole lot better. The first one is to load up a Mac emulator and SimCity 2000 and play it that way. (Check out Macintosh Garden for software and E-Maculation to get the emulator set up). Unless you're an old hand at Mac emulators (as in, already have one set up) or would like to get into Mac gaming, this method is not recommended, as it requires you to download effectively four pieces of software (not including any libraries to make the software work), the emulator itself (SheepShaver or Basilisk II), the software, the Mac OS you'll need, and a Mac ROM, so unless you want to explore other great classic titles from that era of Maxis as well as various shareware from Ambrosia and others, it's not recommended for beginners. One big advantage it has that by using ResEdit (which is another download) you can create your own scenarios from scratch, with your own cities and every parameter the developers have access to.
There's also SimCity 2000 for Windows 95, but I personally can't vouch for it since all the time I sunk into last time was all for naught and it didn't work properly...but there may be hope after all. However, the Windows version has a different UI than DOS and Mac, mostly conforming to the design language of Windows 95), arguably worse music (still better than DOS' default), and you still can't create your own scenarios. This is recommended for more casual players but it still isn't ideal.
The Windows port of SimCity 2000 does have the v1.1 changes, and a v1.2 patch brought it up to parity with the Mac version. The few advantages of the Windows version over the Mac version are pretty minor--there's a debug menu accessed through a cheat as well as a fourth zoom level (the cheats for the Windows version are different than Mac or DOS)
Of course, there is also console and handheld ports of the game as well, but they're all inferior. They don't have the resolution that the computer versions have, nor any features (SCURK, etc.).
For the Super NES version, for instance, there's no terrain editor. A new piece of music plays as you can select only six pre-built maps: "Relieving Scenery" (the default generation, mostly flat with a few hills), "Sound of Stream" (basically the same, but with a lot more water running in all directions), "Hilly Terrain" (basically Relieving Scenery but with a lot more hills), "Large Lake" (lots of hills AND lots of water), "Sound of Sea" (coastline), and "Land of Freedom" (entirely flat with no trees, just a square of water in the center for water pump purposes). Other obvious changes include:
For the PlayStation version, many of the building graphics have been redrawn, along with a unique driving mode (which looks terrible even by 1990s standards) as well as a helicopter mode.
There was an Nintendo 64 version, as well. This was only released in Japan and not to be confused with the 64DD's SimCity 64. There's a new opening sequence and the UI has been redesigned once again with the N64's joystick in mind, and IGN reported that there were some RPG and mini-game elements to the port as well, like the addition of horse racing tracks, which if you build one, "you are actually able to bet on horses and watch the races", a kind of thing that has not been seen in any SimCity games since. I believe the N64 version also changes the tileset automatically when you get far enough into the future.
There were other versions, including Pocket PC, but I don't have much experience with them. I do have the Game Boy Advance version, but we don't talk about that here.