I think that either of these deals would be great for you. You would still be pretty stong on D and you would be flipping a 32 year old center for a 25 yo Vanek, who has had 2 40 goal seasons and just missed a third. And you also get Boyes? He will hurt your +/- but he will get you the points once he starts to turn it on. I think this one is a no brainer IMO.
8 Team Keeper - Year 3
G,A,+/-,PIM,PPG,PPA,SHP,GWG,SOG,FOW,FOL,BS,W,GS,GA,GAA,SV %,SHO
Start 3C, 3LW, 3RW, 5D, 3Utl, 2G
25 Man Roster, Keep All
C - Getzlaf, Tavares, J.Staal(LW), Duchene, RNH, Crosby
LW - Kovalchuk, Hall, Benn, Hartnell, E.Kane
RW - P.Kane, Seguin, Yakupov, Eberle, OV
D - Keith, E.Johnson, Carlson, Karlsson, Burns
G - Rask, Schneider, Rinne