Since the war, we have been challenged with 3 battles. twice from the #2 rank crew, and once from the #1 ranked crew.
All 3 battles were very one sided. I suggest that when a crew decides to do battle, still randomly select opponent, but only within 10 ranking points above or below crews current rank. For example, crew ranked #22 will battle another crew ranked anywhere from rank #12 to rank #32. This will even out battles a lot more. It cannot be enjoyable for a #2 rank crew to easily defeat a #200 rank crew. Nor is it enjoyable for the #200 rank crew to always lose battles to # 1 rank crew.