BoldXenubrick will most likely be our biggest opponents. They all seem to be relatively decent at Civ from what I've seen. Also be ready for some early rushes if we spawn next to Azza. In PBEM 46 he tried to use Keshik rushes to his advantage. (It didn't pan out) and I think he tried to do a rush of some kind in Pitboss 8 as well.
http://nijidraws.tumblr.com/ - Crediting the artist who made my profile pic.