ARURF is probably the worst way to "fix" the issue regarding people spamming certain OP champions. I feel the better way to go about this is to implement the draft pick system into the URF queue. Each player gets a ban (totaling 10 banned champions). Then you can PICK your champion. It can even be Blind after the banning phase. It's just REALLY unfair when a team gets a full team of broken champions and you're stuck with a rather bad hand of champions then you get to sit through a 20 minute game while they just farm kills.
Seriously, do this and EVERYBODY would be happy. The entire concept of ARURF is a good idea on paper, but in practice it's clearly a broken system.