The game is fun, that's good, I think. Here's a couple ideas.

Professional matches should be champion mirror matches. Why? Well, it's not balanced, you're going to have to insert equality somehow. Mirrored team matches is it, probably. Otherwise it's Tic-Tac-Toe... boring. ('Each champ is unique,' so it can't be on two teams, is silly. We know it's a game.) Here's a couple ideas to help. I hope. You could random coin flip for which team picks first, then have the flip winner choose the first character of the team, OR which base to start at, and then have it go back and forth from there. (The announcers could talk about it.) This would give the coin flip winner the choice of which base and two champs, OR three champs. This does a few things to help. By forcing both teams to choose the champs(abilities) they play with and against, it removes the need for bans altogether. It makes playing the game start at champion select rather than end there. It makes owning a lot of champs good, (RP). (It gives the ESPN bullshi**ers something to talk about besides, you know.) It at least helps with the innate imbalance of using an isometric viewpoint. And it also pushes the spotlight away from the one trick ponies who are really good with whatever broken champs are auto attacking this patch.

PS Why can't I bet IP and RP on ranked matches in the game client? That would make it more fun.FLHF