LoL. I liked the Rossi One Magtek for Michigan conditions. That is no lie or sugar coating. It was a pleasantly shocking ride. I didn't expect to like anything out of Rossi's line-up. Would I ever buy one? Probably not because there are simply better boards out there that get the job done just as well and better than Rossi's boards.
I'm a fan of Magnatraction because of Michigan conditions, but to be completely honest, it was pointless when I had a chance to ride it in some real snow. If the board I buy happens to have it, great. If not, I won't be butt hurt over it. With that said, I would not recommend buying a Rossi One Magtek unless you find it for an absolute steal of a price. Not because it sucks, but because there are better options.
People tend to gravitate towards NeverSummer. In fact, I really want one myself, but because the company I work for doesn't carry them yet, I can't get any discounts. And I won't pay full price for any board if I get employee discounts on so many other ones
Other than an NS board, there are tons of great 2011 boards that will suit your needs. I am blind to brands. I just look at the boards. With that said, here are my recommendations. By the way, snowboards.net is a part of Summit Sports which is based in Michigan with shops all over town including Don Thomas in Birmingham. Sorry, had to say that because you're a fellow Michigander. Whatever you see on snowboards.net, you can see in person at one of our Summit Sports shops or Don Thomas (this one is closed during summer).
Burton: Custom V-Rocker, Custom Flying-V (a few people here dislike this board, but I found it to be a really fun ride), Custom X <---- This one is not rockered, but it is an absolute killer ride. The Custom X has always been one of my favorite boards to just bomb with.
K2: Slayblade (zero camber and this thing charges), Turbo Dream (I am seriously considering this as my next board. The all-mountain rocker is awesome and 2011 has harshmellow which makes for a damp ride at higher speeds)
My favorite board of all though, if I could afford it along with new bindings, is the Lib Tech Banana Magic. All I can say about this board is that it was so fun to ride. I didn't want to give it back to the reps when I demoed it. In fact, I demoed this board and the Custom Flying V three times just so I can ride them again (that's what she said).
Lib Tech Banana Magic BTX Snowboard 2011