I did not intend to speak my own mind on this, but I played 3k games on HotS and am low Diam. So far, my understanding of League's problems (which I do not focus on, I'm working on 3 different online games to come up with an effective solution) revolves around snowballing.
-
Getting First Blooded? Allies tilting because from this point, your ennemy laner has a significant advantage and everyone expect him to get a couple more solo kills on you.
-
Botlane is feeding? You know you won't be able to match their mid game and are obviously tilting yourself because whatever you do on your own lane, that 8/0 Caitlyn is gonna dictate the next 30 minutes.
-
Your team is drafting like there's no tomorrow? Full AP no tanks? Well, you know you won't be able to turn the game if you lose after mid game, and you know that they can definitely turn the game if they lose, building tankiness and overlapping CC.
In HotS, I have lost games when our hole team had 4 levels ahead, 2 talents ahead, and I won very desperate games. But at no point of the game, a squishy dps, no matter how much ahead can 100-0 me as a tank or a bruiser. You go to the objective, you lose it, fine. You can definitely win next objective. In League, a good start leads to a good teamfight, which leads to Baron, which leads to free inib, which almost always end up to a slow, agonizing defeat. The only games (in soloQ) where I was behind and managed to win, was because the enemy team had no clue how to close the game.
In fact, let's just look at the main comment of anyone doing a guide about how to rank up. "Your team is garbage, the enemy team is garbage, you have to carry the whole game, period."
How can a strategic 5 v 5 real time action game can be played this way? Never have been intended to be played this way.
The snowball mechanic is way too much prevalent in the current state of the game. I know it's the primary form of "fun" in League, but for 1 people fed and therefore "having fun", 9 others feel either irrelevant in allied team, and helpless and the enemy team. I haven't finish my research and I must match it with similar problems on different games, but at this point in my opinion, the snowballing mechanic is tied to all unfun aspects of the game.