Hey everyone!
For a while now, we've wondered where characters would be placed on a potential tier list. And actually, someone on Reddit wonders about the same thing.
Anyways, in response to this, it could be a good idea to let the discussion flow. So I've personally set up an Imgur album containing a base image for the tier list(s), as well as all character icons. This way, you can take the base and then put the characters on top in order to make a tier list for yourself. Here:
http://imgur.com/a/cQnCw
You can feel free to make your own and post it if you want to (in fact, I'd encourage it), and maybe the community could even agree on an official tier list further down the line, too. Regardless, the tools are there, so if you want to give it a go then I recommend it!
With all this said, it could always be possible to make a post about this later on. As we (the developers) and some of the 3rd parties we're cooperating with may wanna make one ourselves (a deveoper tier list, of sorts), and maybe we could put some fan-made tier lists in there too. Anyways, I hope someone will see this as useful and give it a shot!
-Felix