Sororities and their frat relationships

Generally these sororities have the best relationships with fraternities:

Sigma- all orgs love them but big sig chi/ka/beta
Zeta- lambda & kap sig, weirdly sometimes du?
Phi Mu- ka and whatever fraternity is desperate enough for some ass to deal with them.
Delta- sig ep and beta girls, a couple zbt groupies in there
Aopi - zbt primarily plus beta and and few sig ep/sig chi girls.
Axid- ka and sig ep
Sk- beta lovers, lots of new pi kapp fans and a select few zbters
Axo- beta, new pi kapp and du
Kd- sig pi and du