Making my way to challenger, what champions?

I am looking to either create or join a premade team that would like help me achieve my goals of getting to challenger level, becoming famous and have thousands of women throw themselves at me, in that order. A couple of quick questions please: 1. Who's in EU West that would be interested? 2. Which champion has had the most success in getting to challenger? 3. What are the main things to focus on when climbing the ladder, gameplay wise, cs? raging? have I got this right? 4. What do people like to see gameplay or champion wise when people stream? Please answer my questions, as I just got into trouble for typing this at work, and it would of been all in vain... Captain Shifty El Captain Shifty/YouTube
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