Every year, reverse camber is different. One would think it's evolution, but there's a noticable trend in reverse camber boards evolving back toward full camber (C3BTX...?).
I'd buy the Bataleon and just try my friends banana (snowboard). Check out the "TBT vs others
" page for an analysis more than just "Dude...(it's) on a different level
". Bataleon took my riding to a higher level, too.
I agree in not going the Evil Twin route. I rode mine in shin-knee deep pow last season and had a relatively tough time keeping the nose above. It's plenty stiff, but the small size combined with perfect asym shape (twin) didn't allow me to set my bindings back far enough for deeper snow.
as far as width, I wear a size 11 shoe (US) and ride standard width bataleon boards. Bataleon waists are slightly wider than most other brands, so the need for a "wide" is diminished.