"all sites" is stored in lng tag "main_all" , so search that thorough admin and simply make it blank, that should do it. As for the rankings, not sure out of my head which tag is used, but browse around using search "Rankings"
I replaced the {$list_name} tag with the first part of my title (top site list), and instad of leaving above tags all sites and rankings empty I replaced them with the second and third part of my title. Seems to work.
Yeah, you need setup this very carefully.
If website name is too long, then category text may be truncated in some point, wich is important in some part.