At normal the 4-1-4-1 is a good formation to beat 4-3-3. Dmc must have blue arrow. If you are weaker its good to play this formation with defensive mode and counterattacks. The 4-3-3 is a strong atacking formation so this is a good choice.
If you are stronger you can try it with 3n-1-3w-1-2. I like to play the dandelion against weaker teams playing 4-3-3.