I don't know anything about it regarding admin. I do know that Yahoo has way more accurate position eligibility , and updated rosters are much more frequently. I am not well informed about Fantrax other than we would have to pay for in depth features
As much as I like yahoo's correct player positions and ease for GMs... ESPN is too stellar at providing up to the minute updates on Kane's rape trial or to find out which players names were spelled wrong on the back of the jersey...so I have to choose ESPN because I like to click on the player notes to find links to the Senators "adorable goal celebration" or Franzen getting eaten by a dinosaur.
Just not NBC Sports, last thing I need is Pierre McGuire to provide insight on my team to let me know that Chandler Stephenson is from Saskatoon, Saskatchewan, because really Pierre WTF am I supposed to do with that information