After playing all 4 factions to top 10, I have to agree with FMA.
Ostheer would be the weakest, but currently Stug-E is broken and Redistribute Resources are more than enough to survive.
OKW are 1-dimensional and are easily exploited. There are very little strategies a good player can execute that a poor player cannot.
A lot of it comes down to map selection, and OKW have 3 critical flaws:
1. They cannot play melee maps. Assault Engineers, Thompsons, PPSh and Shock Troops are auto-win on those.
2. They cannot play building-heavy maps. They don't have a flamethrower or spare munitions for grenades.
3. They cannot play maps where munitions are easily cut off. No munitions = no mines/shreks and you bleed to death from the first t34/sherman that hits the field.
I'm sure there are a lot of 2v2/3v3/4v4 players voting here, but its sad to see people are so blind towards the 1 faction they play.
On Relic's stream, it was stated multiple times that their internal data shows OKW as the faction with lowest win rate at higher skill levels. Hell, just look at the win %'s on the 1v1 leader boards for OKW.
![Honor icon](/images/replay/honor_icon.png)