DOTA 2 IS RIDICULOUSLY IMBALANCED BASED ON WINRATES.
THIS IS NOT BALANCE:
http://dotabuff.com/heroes/winning
THIS IS BALANCE:
http://www.lolking.net/champions/
Notice how, in Dota 2, the highest winrate is almost TWENTY-FIVE PERCENT higher than the lowest winrate hero. That is absurd tbh.
Notice how, in League of Legends, the highest winrate is only FIFTEEN PERCENT higher than the lowest winrate champion. Ten percent less than what Dota boasts.
Now, the argument can be made that, in Dota everything is ridiculously imba so it is balanced. THIS =/= BALANCE.
Now, let's take a look at the League usage stats, shall we? Taking the last five champions released, this is what we get:
1.Champion 2. RP Cost 3. IP Cost 4. Popularity 5. Win Rate 6. Ban Rate 7. Meta 8. Released ▼
1. Braum
2. 975 3. 6300 4. 16.02% 5. 54.69% 6. 80.81% 7. Support 8. 5/12/2014
1. Vel'Koz
2. 975 3. 6300 4. 2.33% 5. 51.21% 6. 0.05% 7. Middle Lane 8. 2/27/2014
1. Yasuo
2. 975 3. 6300 4. 16.45% 5. 47.66% 6. 22.93% 7. Middle Lane 8. 12/13/2013
1. Jinx
2. 975 3. 6300 4. 21.88% 5. 51.56% 6. 0.05% 7. AD Carry 8. 10/10/2013
1. Lucian
2. 975 3. 6300 4. 34.14% 5. 51.43% 6. 2.29% 7. AD Carry 8. 8/22/2013
If we look at this, we can see every champion released has a winrate of nearly 50%. And all of the champions have been used in competitive play (outside of Braum because he is newly released). And of course every new champion is going to be either OP or UP depending on how the meta is at the moment they are released. The reason this occurs is because at the time of the release, no one has ever played the champion before and it takes some time to find their place in the meta. This is true in the case of Braum, no one has really found a way to counter him completely so he goes either banned or picked in every game. Such is the craze of a new champion being released.
It is true that I cannot speak much for the side of Dota, but just looking at the numbers it seems that the game is rather imba.