Hey man, you will love BW.
It is not as steep or intimidating as Whistler. So a lot of the areas will be reasonable for your group. The way their lifts are arranged is very nice because you can head to any direction from the lifts and hit anything you like.
There's very few places to get killed compared to Whistler hahah
A couple really nice places to eat right by the main lodge. I forgot their names
but all ride in ride out and there's a supermarket right there too. You can ride all day until 10pm and can even hit your room for eating if you want, without losing much time.
Fun for everyone is difficult to assess, and so for terrain it depends what your group is comfortable doing. Great tree riding... nicely spaced and not very steep; you can weave in and out anytime so if your group finds it's too much you can mix the trees with some groomers and trails and it's not too bad. But in my opinion, hit every chair and do a couple scoping runs to see what interests you.
Bigger bowls if you go Alpine T's or Cliff chair. I think it's black and double blacks but check them out and see it you want to hit them. It's worth it unless it's a mogul field
There's a nice park or so I've heard. I only did the slalom course. Real fun.
Steepest and most fun trees are probably off Powder Chair, Falcon Chair and Gem Lake. More mellow trees off Snow Ghost, Bullet and Black Forrest.... Gem Lake reaches the lowest El, so if it's warm, there may be some icy conditions near the bottom.