Op, have a look in the leader boards for the clans and you will see who has a high success rate of winning
Last Rights seems to have most prestige from Summer Wars and Estoc Trials. I know that MG has a perfect Estoc Trial record.
Not that many. If you're talking about big clans that do it weekly then only a few. But there are some that won but only did one or two wars.
Warriors of the Ancient Realm is undefeated and 23 and 1 has one loss out of 12 wars. Both AMAZING clans
I think we have held our own with losses coming from powerhouse clans mainly But I may be bias ༺ŦĦɆ ĦᎥŦ ႽQɄȺƉ Á̸P☣Ć̸Ạ̸Ł༒ཾPṨ̸Ξ༻