fraternity reputations

Okay so Im an incoming freshman next year and I plan on rushing. I don't wanna hear "just check them out and see where you fit in :)))" because, from my understanding, there's only really a week of rush and I want to have an idea of the general reputation of each fraternity because a week is not nearly enough time to really get to know everyone in every frat. Maybe only one or two frats well enough to make a decision to pledge them. If someone could help out with that I'd be really appreciative. Thanks.