USPHL Premier and USPHL Elite are both under the USPHL Junior Leagues.
USPHL Elite is more geared toward younger players who want to start at the Junior Level and develop and move up to the Premier or Tier 2 (NCDC/NAHL) level as well as some older players, move on to College Hockey at the ACHA D1-D2-D3 Level.
USPHL Premier is geared toward older players BUT also some skilled young players also play in it and eventually advance Tier 2 (NCDC/NAHL). The USPHL Premier is a good league for College Hockey exposure at the NCAA DIII, ACHA D2, D2, D3 Levels.
Both leagues are great developmental leagues and provide great exposure for players looking to take the next step!