I'd really like to see one change. Keep everything the same. Group me with people who have the same mastery.
I find it VERY difficult to play with people who have under 40 mastery. It means they don't have a big champ pool and thus don't understand MANY of the champions they have to face or are not very good with the champions they do play or both...
I have 280 Mastery Points. I would very much appreciate being grouped not just by MMR but with people who have the same mastery points. It's very typical I'm grouped with 4 players who have less than 40 each. Typically, It's MUCH harder to carry them than the people who are closer to 100-150 mastery. I haven't met many people who have near 300 like I do. Would very much like to play with them.