I agree. I knew a lot of folks in other fraternities that I was, and still am, hella cool with. Folks that knew me could not peg a frat I seemed interested in because I did not fit any mold that is very apparent on my campus. I was fortunate enough to meet bruhs that did not go to my school and they all were different, but also goal oriented.
I did months of research before coming to a decision. Iota actually sparked my interest in frats at all because I never intended to become a brother of anything going into college.
The most important thing before choosing an org, like my frat said, is to know yourself. If you feel you need to pedge, you are not ready. It has to be something you want. I got involved with many student groups and got to know a lot of people before my process. I wanted peopl to say, " Joe became an Iota." not, "There's another Iota on campus."
I hope this helps. Remember, pick whichever makes you happy because no frat is for everybody ( otherwise we'd all be Alphas).