granted YLS is about the same size as SLS, but it is confirmed that YLS > HLS/SLS(http://www.autoadmit.com/thread.php?thread_id=2789672&forum_id=2#27170656)
LJL! AT TTT SLS(http://www.autoadmit.com/thread.php?thread_id=2789672&forum_id=2#27170695)
Tier 1: YLS/HLS/CLS
Tier 2: SLS
Tier 3: Chicago
Tier 4: Everything else
(http://www.autoadmit.com/thread.php?thread_id=2789672&forum_id=2#27170777)