I have two level 30 accounts. One in the 1500-1600 elo range (~100 games), and one 1100-1200 (~200 games).
Games that i play in 1500-1600 are more challenging in the sense that I rarely ever dominate my lane. Players generally WANT to win, and listen. I can count on my team mates to know what last hitting is, and know what dragon/baron are. These games are more enjoyable, win or lose. I feel as though I make an impact on these games. I can control the outcome based on my play, for better or for worse.
Games in 1100-1200 range, I always crush my lane, but it is offset by my other lanes feeding relentlessly. Let me define 'relentless feeding' to you for a moment. There's normal feeding, which possibly involves giving first blood, then possible a few more kills, entering mid game having given your opponent 3-4 kills on you. Then there's RELENTLESS feeding. The kind of feeding where the music your listening to while you play get's annoying interrupted by the god **** announcer saying "an ally has been slain". You usually ignore the fact that another lane is losing, trying to dominate your own hard enough that it can snowball. But when somebody on your team feeds relentlessly, you have to turn down the volume of your headset because the god **** ***** keeps interrupting your music every 1 minute and 30 seconds. In this elo range, I feel I win very lopsidedly, and I lose just as hard. It's common to win a game with a team score of 27-3, and then lose the next game 7-30. In this game, there's a very thin line between those who dropped there because they are missing something in their game, and those who are simply passing by because they are in a freefall to sub 1k elo. I find that these games are random in outcome. You increase the odds of getting out immensely with a duo queue partner, but if you're alone... Well you better hope you don't have the relentless feeder on your team.
I know there are many who say that if your true elo is higher, you can carry yourself there. But think about this. If a 1700 player controls a 1400 elo account, do you think he could raise it to 1700 easier than a 1300 player raising a 1000 account to 1300?
I consider myself to be about a 1300 player. Good enough to HANG with the 1500 players, but not good enough to carry the insane baggage of 1100 players. It's not a matter of 'trolls' or 'afkers'. I honestly don't get a lot of that. It's simply, am I able to outcarry another lane that is being RELENTLESSLY FED. The answer is NO. I am NOT good enough to win games like that. I am however able to compete in 1500 games, and stay at that elo for 100 games, and I am not at all overwhelmed by the level of play in those games.
I think there comes a point where 'one does not simply carry'. And that's in the 1100-1200 range. I've never been lower than 1100, so maybe the players are so bad in those games, that i CAN carry the baggage. I can play any role in the game, and I have knowledge of every champion in the game. I can play 3/4ths of the champions, and i have no strongest role, as i think I can play all of them equally.
This was just a rant, there's no real point to it... Just an observation.