I'd happily take the Richards/Green/Saad side.
Goals and Assists from the forwards could possibly be similar, however, having FOW and hits as a category makes Mike Richards the most valuable forward in this deal. Definitely more valuable then David Perron on the other side.
All things considered I'd say Saad/Bennett are pretty even overall, with one possible exception...Joel Quenneville stated they're going to give Brandon Saad a chance to claim the 2nd line center spot. If Saad sticks at center that's a huge boost for his fantasy value especially in your league.
A healthy Mike Green could produce 20+ goals and 70+ points easily. He's a high risk for injury obviously but he's clearly more valuable then Bogosian, who hasn't exactly been a picture perfect bill of health either.
Richards, Green, Saad....terrific deal for you IMO.