Atom is free. Sublime costs $70. Plus, Atom comes with several lovely features Sublime doesn't have. Pay less, get more? Great deal! It's funny to catch friends looking at Sublime's payment popup window. I always joke, "oh, you're still evaluating?" Of course they're not evaluating. They're never going to pay for it. What a nuisance.
Atom has excellent window management. It's very easy to drag a tab and split it half-and-half with any other window horizontally or vertically. Amazing! Sublime doesn't do this.
Atom allows me to rearrange files in the left-nav. I can drag a file from one directory to another. Sublime doesn't do this.
Those two simple features alone are killer features for me. I don't see why Sublime doesn't copy them.
I understand Sublime has some cool multiple cursor stuff. My friend has definitely wowed me with a specific example before. I use vim motions inside Atom, which are great, and I'll occasionally open a file in native vim if I want to use more powerful features like recording macros.
Sublime's code-preview side-bar is semi-useful. It definitely looks pretty. I used an Atom plugin that emulated that behavior but ultimately disabled it to gain screen real estate. Also, long files with redundant code blocks (that looks oh-so pretty in that side bar) is bad code! Keep files short, gain screen real estate, and there you go! I swear, I worked with someone who used Sublime and he wrote the longest, most redundant code I've ever seen. I assumed he loved looking at the code in that preview side bar. I admit: the experience left a bad taste in my mouth.
Those are my reasons for using Atom over Sublime. Sorry I don't have enough experience with VSCode to answer your actual question!
