if you win a game or lose a game you still gain points. I would assume that the clan with the most would win unless your in a situation like I am seeing where none of the other 5 clans are fighting. At least it doesn't appear that they are because none have registered wins.
we sat out of the last clan war and it dropped us from gold to bronze for some reason.
yyou need to win a cp to win the clan war not clan Xp there is a difference clan Xp is earned while playing with at least one other clan member.. As far as dropping from gold to bronze only the top three clans are safe from being dropped with the first place clan getting moved up.
Nobody would win the war. They only score based off of CP and if you don't capture a node, there is no CP, therefore nobody wins.
It has been stated in the past to recieve any of the rewards the clan must have at least 1 cp, so if no clans get any cp they will not recieve any of the rewards they are just in a numbers slot.