The most frustrating thing in ARAM...

... is when you have a nice team and the enemy players dodge the game. Queue up for another game and, if you're as lucky as I am, you're going to get a shitty team at least 70% of the times.

I don't know if it's possible, but it would be so much better if, whenever a game is dodged, the players in their next ARAM game get the same champion they had previously. I believe that something like this would immensely lower ARAM dodge rate.

Also, it would be so much better if all champions were available on the map.