ARAM: unlock all champs
It should be truly random and have all the champions unlocked. But, you say, "oh no, not this junk again".
So, then I ask, you expect people to buy champs and "test" them out for a mode that champs dont get tailored too? And, theres a good chance that champ is gonna suck. That's a total crock of crap. The map and mode is fun, but Riots idea of "random" is a laugh at best.
Right now its like playing a slot machine and you see too many of the same champs due to smaller pools to pick from. It's high percent you see all "cherries" or all "777"s versus junk.
Though, id just prefer another map or mode to replace this awful setup.