G'day.
I liked and disliked both experiments - so no clear answer to what was best and/or worst of them, also in comparison with the not experimental mode (I must admit though, that once again being able to play on 'new' maps in the 16 vs. 16 experiment have been absolutely great - I have really missed more maps in the MM battles!!).
So, after having thought a little about these experiments and normal game mode too, I got to the conclusion, that possibilities for some more diversity in the MM battles, at least for me, would be really nice.
One idea I got to think of, was to do/add a kind of a matrix to the MM battles, where you could choose what kind of combination/combinations you would like to play. Probably one should be 'forced' to choose 3-4 of the combinations, which you then randomly were connected to in the MM battles - this to prevent people to only play one combination all the time and also to decrease waiting time.
The matrix I thought of contains three parameters (axis) with two values on each parameter:
1. axis
Parameter: Maps
Values: Small and Big
2. axis
Parameter: Players
Values: Few and Many
3. axis
Parameter: Time
Values: Short and Long
This matrix hence contains eight combinations, but you can easily increase/decrease number of combinations (e.g., in 'Time' values could be 'Short, 'Medium' and 'Long') - if so wanted - and the numbers in the values can also easily be changed (e.g., in 'Players' 'Few' could be 6 and 'Many' 16 or any other number).
If this matrix or something alike or a part of it could be added to the MM battles, I think this would increase level of satisfaction at quite some players, as the matrix can cover quite some different areas/playing styles. At least I hope/interpret so - after having read some of the comments regarding these experiments.
The only thing I'm a bit worried about is the waiting time and that's why I propose, that players should be forced to choose 3-4 combinations, as this makes it's faster to reach the wanted/needed number of players.
Hope this thought will rise some interest.
Slainté