ARAM just hasn't been the same since bans were introduced and promptly removed. RNG wins every damned round, never a balanced game.
You need to do something about ARAM...make it fun again.
Use your RNG to pick a random comp, such as Tank, Tank, Support, AP, AP
THEN fill the comp with random characters, so that both teams have an even comp but random characters.
I'm so fucking sick of losing at load screen.