What game mode do you intend to play and what is important to you?
If you intend to play team games then OKW become very strong as OKH partners can help offset their resource penalty and the longer game means their impressive Vet becomes very helpful
In 1v1 they aren't regarded as a power faction.
If on the other hand you like an eclectic choice of vehicles and units backed up with the best stock AT infantry in the game then they are for you
