http://coh2chart.com/
This says you need to learn to play, as axis dominates everything above 1v1, where USF is little bit stronger, UKF is little bit weaker and remaining ones are balanced.
2v2 AT allies are on top at the moment, but this early might still be due players learning new OKW, so check the graphs in 2-3 weeks again.
My guess?
OKW is not easy shreck blob faction anylonger, if you had problems with old wehr combined arms, you will suck with new OKW as well as they rely on combined arms just as much now.
Check the stats in a few days as allied meta progresses.
USF mortar spam is over the top. Comes out in every match along with the ubiquitous rifleblob equipped with bazookas and LMGs.
Penal battalions now negate the previous early balance between grenadiers and conscripts, and grenadiers get hosed instantly with four man squads versus flamethrowers.
Stuart comes out so early to the point where you need to rush for AT or get wiped off the field.
Strong OKW infantry is beaten severely in the face of the super complimentary allied synergies.