If we divide the battle decks among few categories according to average elixir then we will get the followings -
Super Low elixir Decks
Average Low Elixir Deck
Average low elixir decks are those ones which has average elixir cost upto 3.5 This is an example of a good average low elixir deck. This type of decks are good for defending but you are probably going to lose with the heavy elixir decks if you can not destroy the opponent tower within first 3 minutes, With this kind of decks you can target one tower only. Winning chances are fair with this kind of deck, In the 2x elixir period it will be hard for you to maintain your opponent if they have heavy elixir troops.
Average Good Elixir Deck
This decks are probably the best ones to have. These decks are counted upto 4.4. These average good elixir decks are pretty much balanced and you can spawn your troops fairly well. You can both both and defend very well with this kind of decks. Winning chances are good but you have to be careful with heavy elixir decks in the 2x elixir period. With the low elixir decks, you chances of winning is more than ninety percent.
Average High Elixir Decks
Average high elixir decks are those which have more than 4.4 average elixir. This decks works very well in the 2x elixir period. With this deck you can push great but defending is quite hard, So till the 2x elixir period just defend yourself and then you can start pushing and you can hope for 3 crown victory. However, with the Average good elixir deck, your chances of winning is equal.