Best Mids to Carry With Through Bronze?

Honestly, I've played a bit in Bronze, still a rookie, obviously. Anyway, if I go support bot, my ADC is almost always fed, but doesn't know how to use the "power he was bestowed" and my mid loses too. If I go mid, bot is just crushed. I usually do very well in my two roles, support and mid. However, my teams usually lack knowledge of warding, when and when to not go in, who to focus, etc. I have many flaws myself, but I still do want to climb and compensate for what I lack. My Diamond friend said that I need to learn how to carry myself out of Bronze. I was wondering who the best mids were for carrying. Currently, I main Zed, Ahri, Syndra, LeBlanc, and Veigar. (And AP Ezreal, for fun). Anyway, I'm not good with Yasuo and Fizz (even if they're banned in almost every ranked in Bronze, I'm still putting that out there if anyone recommends them, but I am working on my style with them). There's also a lot of ragers and AFK'ers here. We had our jungle ragequit because our Yasuo top roamed and got a triple kill in bot lane. The reason? "He left lane".