Burst vs Sustained damage
To start with I think both are interesting forms of damage and I think both should have a place in the game. However in terms of game balance, it feels to me like LOL's design favors burst damage over sustained damage. Does anyone else get this feeling? That someone who can do 3k damage in 2 seconds but then has a bit of a cooldown is better than someone who could do 10k damage in 10 seconds (numbers are random examples). The two meet in a fight and the guy with the 3k damage will probably win because he'll do 1000 more damage by that 2nd second meaning the other guy is dead and his team is out their damage dealer on the wrong end of a 4v5.
To put it in perspective, you guys know how you hate an assassin meta? Well assassins tend to be (but not always) burst champs. So an assassin meta means the other team is going to burst yours down if you aren't running better and more fed assassins.
Another example of things being skewed towards burst is bot lane. What's the item most ADC champs want to finish early? For a lot of them it's something like IE or ER. Sure graves rushes firecannon, but he's kinda bursty before hand and it is a bursty item for him. Corki rushes TF because that's how he gets his burst. A weapon like IE or ER gives a non bursty ADC that damage burst he needs, even if it is a little bit random when it comes early on. I mean the champs who run bork do it because their burst of damage relies on AS... Kalista with her E and Vayne with her W. I'd argue this is why Soraka is doing so well... her W is great at cancelling out the other guy's burst. So as long as Soraka plays safe and hits the occasional Q, her team is much more likely to win bot lane as she's kind of an anti-burst champ. This is also why Janna is so good, she can delay and reset the other team's ability to burst you down. Leona is good because she brings that burst of damage.
So if LOL was MtG, it seems like riot is favoring red weenie and burn decks in balance over the blue-black control decks. I'm not sure this is a great idea in that I think riot seems to be favoring speed a little too much lately. I get it they want the games to be shorter and longer games are dreadful but at the same time, I think they need more than who spams the fastest wins. Don't get me wrong, I hate tank metas as much as assassin metas, so I'm not asking for more beef. However it seems like sustained damage in general needs a little TLC.