If you want 1 1/2 baths (which IMO, would be a must for a family coach if it was in my budget), I believe the only choice from the factory is the Discovery 42A but you can also get other 1 1/2 bath floorplans modified. Fleetwood / American Coach will do it so you could easily do a Revolution 42T, Eagle 45T or Heri 45T (although in that one, you'd probably want the toilet relocated (like in the 42T/45T) so it's probably a much bigger remodel). I believe Newmar will also do it and they have a number of floorplans with rear bath with a large closet that could be modifed for bunks (Ven 4346, DS 4347, MA 4347, Essex 4547). I've heard Tiffin will not do modifications like these. There are probably others that I can't think of right now. The one thing that's nice with the 42A is that it's an actual room as oppose to just beds. You could get a small room in a Rev 42T or the Newmars but they would be quite a bit smaller. You could also probably get 3 or 4 beds in the 42A with some remodeling - that's probably not an option with the others unless you have 3 high bunks.
If you are willing to skip the 1 1/2 bath then there are a bunch of options both that come with bunks from the factory or that would be suitable to customize with bunks. You can add Winnebago Forza 38R to your list as a new one. As far as Sportscoach, the have the Cross Country 385DS
Looking at the Palazzos, I'd be interested to see if Thor comes up with something like a '36.3' with bunks. I think that could be real popular for families.