US News finally made the update to their pharmacy school rankings. There has definitely been some movement and shuffling, but UCSF remains #1. Please read their methodology for more information (a direct quote is below). Note that this is a subjective and quantitative research analysis.
All the health rankings are based solely on the results of peer assessment surveys sent to deans, other administrators, and/or faculty at accredited degree programs or schools in each discipline. All schools surveyed in a discipline were sent the same number of surveys. Respondents rated the academic quality of programs on a scale of 1 (marginal) to 5 (outstanding). They were instructed to select “don’t know” if they did not have enough knowledge to rate a program. Only fully accredited programs in good standing during the survey period are ranked. Those schools with the highest average scores appear in the rankings.