So you're in bronze and you're trapped. You need a way out. You feel like you deserve better and if your teammates would just listen to you you'd be out of there in no time. Guess what? You're wrong.
Why are you wrong, you say? Because it is *YOUR* responsibility and *YOURS ALONE* where you end up in Ranked. If you're in bronze, it's because you're doing something - SOMETHING - fundamentally wrong. Bronze is where new players go to die. If you're experienced, you should be out of bronze within a month. Even if you have a stomach flu and just play Soraka support 24/7 (cough) err moving on...
So the first question you must ask yourself is why you're losing. If the answer is "my teammates suck" you should stop reading now.
If you're still here, you're willing to learn. Congratulations! You are now better than 60% of bronze players. Welcome to the club. :-)
Now we'll get into specifics because I know you're actually listening.
First off your teammates are going to be worse than most intermediate bots. Honestly. Try a game versus intermediate bots then try a game vs bronzies. You'll lose more often to the bots than the bronzies.
So disregard your teammates and every idiotic notion that spews out of their mouth. They're not worth your time to read, or worse, respond to. Communicate via pings and realize your team will ignore you unless you're fed.
Now that we've gotten all the generic stuff out of the way...
No two ways around it. In Bronze you need a hypercarry. This means someone like Tryndamere, Akali, Katarina, Teemo (ish), Rengar, Kha'Zix, Tristana etc. etc. Preferably someone with a reset - everyone builds AD so people die quickly all the time. There are generally no tanks, so burst damage is OP. Especially burst with reset ( Kha'Zix, Katarina).
... I'm gonna go work out, I'll finish this later if I get any comments / interest / messages. If not oh well, it was fun to write. :-) Later!!
One last thing... Here's my blog: http://satoriblogger.blogspot.com/ It's where I normally place all my League writing. Come check it out!!