I'm more of a tradeswoman, really, so my answer would be "none of the above". If I were to be looking at clans based upon combat prowess (more difficult in RS due to the combat system compared to say, WoW or something - but I really don't PK so my knowledge on this is nil) then I'd probably pick random run-ins. I'd be more impressed with a clan that defeated a random attack ("We're outnumbered! Kill 'em anyway!" as opposed to "Run away! Run away!") than an arranged event such as a war. THEN AGAIN, a clan that has a good turn-out to a war is pretty impressive as well - that means there's loyalty there! Loyalty is a good thing. SO, it's a toss-up. Most important to me (and not even listed here) is how a Clan's members treat each other and non-members. If a Clan is full of jerks, they're not worth the time of day and therefore, their performance in wars and run-ins doesn't exactly matter to me. Sure, they can wipe the floor with Clan B, but they treat people like complete crud - so why should I care? TL;DR Version: My personal opinion is that the way the people act is more important than the war thing, but for the sake of this topic, it's a pretty equal mix between wars and run-ins.