You can never win in 4vs4 using a PvE commander.
If you're looking for a solid commander for PvP, I'd highly recommend going with a Royal Artillery Regiment (RAR) commander.
Your text..
Honestly from playing against brits a lot i can easily say that the best commander for them is the AVRE commander. The strongest opening in the entire game with Infantry section plus Universal carrier and royal Engineers from the doctrine itself. Nothing beats that and when you face wehrmacht that build MG first play you are guaranteed a win in the early fight. Honestly broken ... The engineers should be able to be called in with 1 command point perhaps...