I believe a good layering system is more important than the jacket you wear. I've worn my Frabill I3 suit in -40 degree windchills hole hopping and it's no secret that they aren't the best jackets. Moisture wicking base layer, long sleeve wool shirt, a hooded sweatshirt and my frabill jacket has always done the trick.
There are ALOT of new suits coming out this season, hard to keep track of them all. Eskimo just released a whole line up of suits.
Side note - do you have the FXR excursion jacket and bibs? I was looking into getting the bibs but if you don't think they can hold up with the cold temps then they won't work for me.