The following link gives recruitment statistics.
http://www.unc.edu/depts/greek/SR_Fall97.html
In addition, the link to Greek Life is very informative.
http://www.unc.edu/depts/greek/index.html
The following chapters are ranked by size according to membership only, are at or over chapter average and do not seem to hold informal rush.
ADPi, DDD, PiPhi, XO, KD, AXO, KKG, ZTA, SSS
Stargzr19, I graduated from a school in the south that is about the same size as UNC. I went to High School in Germany and was familiar with USM, but only knew one person when I started. Rush helped introduce me to other people with similar and different interests and these new friends and sisters helped me learn my way around campus. At some schools it does not matter if you rush as a freshman or sophomore and by the stats, it does not seem to hinder you at UNC. That said, freshman usually has an advantage over upperclassman with similar backgrounds (meaning GPA, Extra-circular activities, personality, etc.) during Rush.
Good Luck and remember to keep an open mind!
[This message has been edited by PiPhiAlum (edited May 05, 2001).]