OK I can give you some of the infor you wanted about umich but not all....
As far as best grades go....... sororities average 3.26 to a non-greek women's 3.10. We're all smart. We do get to know who is has the best average as a house, but you will only be told if you join.
ALL the houses are hard to get into. There never is an easy one. We want girls but we're not desperate, ya know.
Most fun, depends in what you're looking for. All the houses are fun in their own ways....we all know how to party too.
Pretty much every sorority at UM has members of athletic teams ranging from Varsity to club and IM teams.
Sororities at UM
NPC
Alpha Chi Omega
Alpha Delta Pi
Alpha Epsilon Phi
Alpha Gamma Delta (woohoo!)
Alpha Phi
Chi Omega
Delta Delta Delta
Delta Gamma
Delta Phi Epsilon
Gamma Phi Beta
Kappa Alpha Theta
Kappa Kappa Gamma
Pi Beta Phi
Sigma Delta Tau
Sigma Kappa
BGA
Alpha Gamma Psi (Local)
Delta Sigma Theta
Sigma Gamma Rho
Zeta Phi Beta
Alpha Kappa Alpha (think they are coming back next year)
MGC
Alpha Kappa Delta Phi
Lambda Theta Alpha
Sigma Lambda Gamma
Zeta Sigma Chi
Im sure we have a ton more too.
But like someone said, looking for those traits isnt going to good for you going into rush. And UM is very competitive. Just have fun with it. Go here if you want more info on them
UM Office of Greek Life