It was said on the reddit dev post that Fort Aspenwood was within 10% of BG's playtime/hrs for wvw. This can't be correct. Fort Aspenwood is in Tier 4 and BG in Tier 1. BG queues every map up to 100+ and there are "crickets" on FA ( mainly because a lot of players are off doing the expansion on the new maps).
Something is wrong in the formula or whatever it is you use to determine server fullness/activity.
BG is so active they are in tier 1 and in 1st while FA is in Tier 4