Not a big fan of top 100 sort of lists, for individual players anyway. Always seems to attract griefers and trolls, never pretty.
I am in favor of a realm v realm, or union v union type list though, something to show how all the players of a side are doing combined. Tends to promote more teamwork (trolls too, but usually less).
Guild v Guild leaderboards are sort of hit and miss, while it can certainly promote healthy competition and such, usually it just ends up with elitist jerks who act like penguins.
I believe humans get a lot done, not because weâ€™re smart, but because we have thumbs so we can make coffee ~Flash Rosenberg