If you had D Sedin, would you trade him for Kovalchuk? 1 for 1. Standard league settings, keeper league.
Who wins and why?
If only for the reason of being a few years younger, I might do it.
At the same time, I think Daniel is probably a little more explosive playing with his brother.
I'm not gonna' tell you what you should do on that one, 'cause it's tough.