Okay we had this before but there are 2 things which are really not fun in skirmish / pantheon.
1) AIs in the game, I don't think I speak for a minority here when I say that people who click on the multiplayer button want to play vs human opponents not vs AIs. In the current moment there are 30 Pantheon and 8 Instant action matches going on, probably any of them has an AI in. having only 15 Pantheon matches and 4 Instant action matches going on would probably a lot more fun for at least 90% of the players.
2) Uneven Teams, While the general concept is intruiging I don't get what I (1-0 stats) get matched up in a 3vs1, me allied with 2 AIs vs some poor soul who probably just got the game today. It is totally pointless for him and me and frustrates all participants. I personally wouldn't mind being in a 2vs3 vs weaker players yet a big problem of even this is that it is totally humiliating for the 3 player team if they lose.
P.S: Having the rankings updated only once a day ("Note: Rankings are updated once daily at midnight EST.") is kind of weak as well - I wouldn't mind if the stats on the page are only updated once per day if it wasn't the only source too look at them though. And I wouldn't mind if the match details etc are only updated once a day either, but at least the win-loss stats, experience, favour and rank of each player should be updated a lot more often. People are used to that from nearly all other multiplayer games or at least RTS.