How to make League of Legends better.

I feel as if I should be able to state my mind, for I'm a League Veteran, meaning I've been playing the game for close to 8 years now. I love the game to death, but there are just some things I just do not agree with, that are just easily fixable. There are also things that can just use some tweaking here and there. I'm going to break my points/biased opinions down in a layout here, so it's not all clustered and so some people can read something that catches their attention easier.

League ranking system. This mainly applies to Ranked Flex, where you can get paired with/against any elo in your game, which I feel is just completely idiotic. No offense, but why should a player who has very little familiarity, low-end mechanics, no map awareness, etc; get placed against a player with the complete opposite? That's just as bad as putting someone behind the wheel of a plane with 3000 passengers, rather than an experienced pilot with years of experience and knowledge. Just pair's Bronze players with Bronze, and Diamond with Diamond. Simple enough.

Playing champions you've never played before into ranked. Ranked is solely meant for competitive gameplay, not playing something because they look cool, someone told you their OP, or just because you got a skin from the hextec system. There's Normals, Bots, Training tool, Random game modes, Twisted Treeline, and possibly ARAM (if you're lucky) to try it out, but people still decide to take the risk of slapping them straight into ranked. Yes, you can tell me your stories how "I carried my game is first time Urgot", sadly fella, you don't apply to everyone. My solution to this predicament is to somehow implement the Champion Mastery system into playing champions into ranked. Yes, people are going to bitch and complain about how they just want to play ranked, but it would just make the Ranked experience so much better. A master 5 Yasuo is better than a Yasuo who's never touched him before.

Buff Merc Treads There's so much CC in the game right now, to where I can't even move anymore. Every single champion it feels like, is just nailing me into the ground, so give Merc Treads the tenacity it once had before. Please don't give me the "If you get hit by CC, it's your fault. Yeah, because I'm going to dodge E, Q and W, just to give a few examples. I can only one thing per 90 seconds ladies and gentleman.