A lot of my friends go to Miami and it was my second choice so I know a lot about the school. My best friend is a Kappa Delta there and I know a few Pi Phis there also. I would recommend just getting to know girls from each house the first semester. It's a better way of finding out where you fit in rather than where you think you should be! Houses can change from just two really strong or really weak pledge classes so I wouldn't worry about the reputation of the house unless you don't feel comfortable with the girls in the house! I'm sure there are girls on this board who are from Miami U and could help you out if you still want specifics and please be sure to come back and post your rush experiences so we can offer support!
Jess