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This year's NHL trade deadline saw a lot of current stars move from one team to another, but it also saw potential future stars shift teams, too, and often in the other direction.

Thomas Vanek now plays for Montreal, but Sebastien Collberg has joined the New York Islanders' system. Ryan Miller is stopping pucks in St. Louis, but William Carrier is now part of a deep system in Buffalo.

Given moves like those, now is an appropriate time to look at every NHL team's prospect system and determine which clubs have the best collections of young, up-and-coming players. Are deadline sellers like the Sabres and Islanders moving to the top of the list, or are teams like Tampa Bay—a team that held back last year's third overall pick for a season—at the forefront of the NHL today?

Read on for our rankings.

Unless otherwise noted, information used herein comes from HockeyProspectus.com, HockeysFuture.com or HockeyDB.com.