You don't always win fantasy leagues with the best players in terms of a season-long body of work. There's no question it helps you to an extent, but players who get hot at the right time are often most responsible for fantasy championships in head-to-head leagues.
During the past 30 days, the most productive player at each position in Yahoo's performance-based rankings is hardly surprising: Jamie Benn of the Dallas Stars has been the top forward (1st overall), Brent Burns of the San Jose Sharks has been the top defenseman (2nd overall), and Matt Murray of the Pittsburgh Penguins has been the top goalie (8th overall).
Fantasy: Most valuable players in past 30 days
Nino Niederreiter, Evander Kane among top standard-league assets during that span