Not sure if anyone else ever mentioned this kind of solution, but I think ranked games should allow you to pick what role you want to play before matchmaking. It's not like Team Builder where you pick the role *and* champion, but just the role. This way, you still have banning phases and back and forth champion selects. Last night, I played a ranked game and was pretty much forced to play ADC. I suck at laning (which is why I always jungle or support) and the entire time I was asking myself "Why am I the ADC?" It just doesn't make any sense. I know that "you should know how to play every role" etc, but why? If someone is a jungle main, why can't they only jungle in ranked? People's overall attitude would be better because if they encounter an AFKer or something, they know that they have a good chance of negating the upcoming loss because they can que right back up as their main role. Not to mention that if everyone got to play their main roles, there would be less arguing.
TL;DR- RITO, LET US PICK OUR PREFERRED ROLES IN RANKED!