I think Seabrook could squeeze out 40 points this season with Chicago leaning on their top pairing so much. Also with hits as a category you have to like him even more.
Havlat is turning it around but is always an injury risk. I don't mind this swap at all.
It's a close one but I side with Havlat in terms of value. Even in a roto goals and assists are most valuable as they are most rare to obtain (especially goals). Havlat gets you that in high amounts. Nice winger to own despite the injury risk.
I'm not as much of a believer as some in Seabrook's offensive game. I'll say 35 when it's all said and done. The hits are nice but that's just one category. You need to look at the bigger picture.
It's a close deal though. I recommend inputting your league settings at hockeypoolgeek.com to see which player mathematically comes out on top.