Played my first two ranked last night.
Now, I know that most people have a hard time fathoming this game, but I'm pretty alright. I normally play top->mid->jungle, where I try to avoid support/adc like the plague, though I can play it, but far from the same level.
First game went terrible. Every lane lost, but mine. I was against Singed, and he wasn't bad. It was stalemate with farming only, where I managed to get him low a couple of times, but as soon as I thought I could engage in a kill, he would recall. Tried to roam at one point, but mid had fed so much that fiddlesticks could kill pretty much anyone with a fear / drain combo. The jungler never came top either. We surrendered at 20.
Second game was much better. Was against Xin, and managed 3 kills without my jungler in the start phase. All the other lanes won, and we eventually took the win.
I like how much more communication there is in ranked, but I must admit that I'm surprised by the 'quality' of players in ranked. Thought they'd be better than most normal games.