Rot is going to stay exactly where they are. No clan(s) have the numbers/dedication/organization to ever give Rot an L in the wilderness. The only way anything is going to change is if some serious inner clan drama happened with in rot ranks(Never going to happen) or until Brian/Matt get bored of winning (yes it can happen we might have to wait four more years ) and disband rot which would then rebirth the clan world in a way if members of rot were to spread out into different clans / form new ones.
Rot will stay on top until they close. Nobody has what it takes to defeat rot. And main clanning will conintue to be boring as hell outside mid sized clanning due to rot completely destroying former legacy clans.
It's all a matter of preference really. If you enjoy pking edgeville and don't wanna do to much training/questing I would go 60 att 1 def pure. That's prob where I would start considering you can take the time while making the account to think about an end result more and be fully capable of making almost any account with those stats after you decide. 1 def pure/barrows pure/main are all solid options.