I dont know why you have datsyuk in the headline because clearly iginla is the one that should be headlining this trade.
I'm not sure what you are trying to get out of this trade.
Basically you are giving up Iginla for Kovalchuk which could be good if you are weak at LW and very strong at RW but otherwise I wouldn't make that deal. Stats for each player would probably favor Iginla in almost every category. Kovalchuk has slight edge in goals, maybe SOG.
Datsyuk for Zetterberg which I think is pretty much a wash.
Ward for Bryzgalov which you are losing. My god how you are losing.
And Versteeg and Bourque for Pavelski or Alfie. If you get Alfie I think you win if you are in need of a RW but you give up a dually in Bourque.
Basically, mostly because of you giving up Bryzgalov I think you are losing in this deal big time