[Ozymandias]

What I've seen of BE Ermor their Principes are just as stout as Pythium's. Plus they have Body Ethereal pre-researched and only modestly priced Thaumaturgs, so early expansion ought to be pretty cheap. Aside from their excelent nether dart ability though, they are lacking in later magical potence. I may be underestimating the might of death and astral though.