No fixed wipes, let community decide.
The title says it all really. Personally when I look to join a PvP server I generally avoid ones with fixed wipes as it makes it feel like the effort you put in is wasted when it wipes every few months. I feel like it would be good to do a vote on wipes instead, because 3 months may pass and people may not feel like a wipe is necessary at that time. So instead of wiping every 3 months, why not hold a vote every 3 months instead?