Whilst we can all suggest a formation to counter 4-3-3 like,.3-2-2-2-1, which works well for me, much better than 4-4-2 which has been the standard on T11 for some time.
It's about countering with what suites your team best. Minimise his threat and maximise your own threat.
What I mean by this is, if playing 4 defenders means leaving out one of your better players, try to counter him with the better player included.
What works for one may not work for all.