I'm in love with Jesus and proud of it!
If in MM you were paired up in parties based on your individual K/D in certain playlists. That way, casuals would play against casuals, moderates against moderates, and advanced players against advanced players. Perhaps this is simply a bad way to keep players from improving, but it would prevent you from being stuck on a team with players who's K/D's are below 1, above 1.5, etc. Perhaps a rounding system could be used, like matching players to the nearest 10th. So a 1.17 could be paired as a 1.2, and a 1.14 would be paired down as a 1.1, etc. People could still improve, and matches would feature players who all have similar skills rather than a 1.02, 1.90, .43 and .80 getting paired together.
[Edited on 11.04.2011 10:40 AM PDT]