The interface on consoles is newer and sleeker, and I think it's much easier to use and see at a glance which gear is better in your inventory. So already, the console versions are on top. It has other weird mystery boxes, but the animation for them isn't as fun. It's pretty easy to unlock heroes just playing for free, and you can play through the game without spending any money. Marvel Heroes is monetized in a smart way. The loot boxes are an easy way to unlock content in the game, and win some costumes while you're at it. You can sometimes earn them and you can also buy them with real money. The console versions of the game have loot boxes. I want to dive into one, but I don't know which one to play. All three versions have their strengths and weaknesses.
The PC version continues to receive updates. Now, the game is out on PS4 and Xbox One. I'd check in on every update for a little while, but it never quite hooked me the same way it did in those first months. Then I played it some when it came out on Steam. I bought the cheapest founders pack that would let me into the game, and played it through their launcher. I put a bunch of time into Marvel Heroes when it first launched on PC.