You will get your answer when the tournament winner is revealed.EB clans and big nobbed up builds that don't war are not what I'd class as strong in the context of a war game!
The tournament winner will likely not be the best war clan. It will be a good system war clan that performs well under soft conditions for a war
I saw a clan fail Warbeasts with a total of 2 successful actions. We now know that clan as Kingdom Lords, home of Spragga.