Guild Wars 2

Servers should score points every 15 min in proportion of count of players of lowest populated server at www map:

500 players (cap) => koef=1.0
250 players => koef=0.5

So at night if there around 20+ players from each server koef=0.04 and night capping will not affect so much for common scores

Also this scheme will not allow low populated servers even with good organisation meet full servers, because all servers will get less points then full servers.

But it can be solved by normalization of scores at end of week/2week period.
Example:

Full servers at end of week receive scores:
a = 100
b = 30
c = 70
summ_full = sum_max = 200 (and it is max summ of all www scores)

Low populated servers will get
x=60
y=5
z=35
summ_low = 100

After normalization: x = x * summ_max/summ_low
x = 120
y = 10
z = 70
sum_low_normalized = 200

These normalized scores can be used to build roster for next week/2week challenge

Sorry for my bad english. I hope you understand my idea.
Thanks.

If you want the servers gain www bonuses in same ratio you can dynamicaly update the normalization coefficient (KN=sum_max/sum_low) for each server every 15 minutes scores and this coef should affect points required for bonus upgrade:
points_reuqired_for_bonus_new = points_reuqired_for_bonus_old / KN