Out of just under 2000 rushing, 121 were sophomores and 12 were juniors. No seniors.
Of the 121 sophomores, 85 pledged. Out of the 12 juniors, 9 pledged. So your odds as a junior are actually better than as a sophomore.
This does not include women who pledged during COB, and some of those are always upperclassmen.
Here are overall statistics:
http://greekaffairs.ua.edu/documents...r2002-2012.pdf
If you have grades and activities, the next thing is to be open to any group. They are all great groups, with outstanding women and many different types of women. You should be able to find your niche and close buddies in any group.
Best of luck, and
RTR!