I second removing the army green ban. I think the only matchup below LA that is fair is QUE and even then I'm not too sold on that
I'll grant you STL is tough to group but I think I'd put them below WSH. STL seems substantially worse than every team above them but also fairly better than everyone below them except WSH. I would consider flipping PHI and EDM so that you could run a band for STL from Edm to NJ. (Edm, Pit, Hfd, NJ) I would put WSH above Edm and leave them out of the STL band.
My argument for WSH over STL can be summed up this way. Wsh has a 6 speed player, a legit sniper in Khristch and a good role player in Ridley. Throw in one of the best and most versatile blue lines in the game and you have a great team with a weak goalie. STL has one player (Hull) who does not have elite skating and can be inconsistent with goal scoring. They lack a true play maker or speedster up front and are brutally slow. Their defense is 1 player deep, but Brown is slow too. Joseph is an okay goalie but nothing more.
I think WSH is dynamic and deserves a band along the lines of (Tor, Edm, NYR, Pit, Que). I think they can go even higher but I don't want to go further until I get a feel for the reaction on this line of thinking.
I guess Que still needs a band (Tor & NYR for sure). I guess LA? Dal too? But not much more than that.
DAL you could give them a line from Van-NYR. They are crazy inconsistent and have no home ice adv. On the other hand their skating allows them to play with anyone and they are great on the road.
I intended only to note a few things, I have clearly gotten out of hand so I'll stop now