"I'm going to Philmont with 9 15-year-old boys..." On purpose?
Just kidding - working with youth groups is a great way to backpack, and to ensure that there will be more people to help keep the trail systems operating in the future. It's also a lot of fun watching them react to the stuff that happens.
I've got a Hubba (solo) and really like it. I've never had significant condensation problems (about like any other double-wall tent - depends on how tightly you button it down.) For hot weather, it's really nice - the tent body is about 99% mesh, and is as close as you can come to sleeping under the stars without bug issues. There's plenty of headroom. However, the floor is long but fairly narrow; my sleeping bag is usually in contact with the mesh sidewalls. It's also freestanding, an advantage if you're camping on a rock surface. The vestibule is also roomy, and there's a back vestibule that you can store stuff in that doesn't need to be accessible (there's no opening from the tent into the rear vestibule.)
My own favorite tent is another MSR tent: the Zoid 1. It weighs a few ounces less than the Hubba (mine's 3 pounds even including a silnylon stuff sack and 8 stakes.) It doesn't have as much headroom (at 5'11" I just brush the top when I sit up) or as much mesh (say, 50 or 60%), and the vestibule is small (but still adequate.) However, the floor is a few inches wider at the foot, and substantially wider at the shoulders; the bag doesn't contact the walls unless I move around a lot. There's lots of extra room at the head of the tent to store stuff. My preference for this tent, though, may be how elegantly it stores my gear: my empty Vapor Trail pack fits neatly into the foot, I butt my 3/4 Prolite pad against it, and end up with a nice full-length sleeping pad, plus room in the head of the tent for my shoes with my inflated Dromlite bag on top for a pillow. Maps, first aid kit, headlamp, etc. all fit nicely into the pockets at the head end, and there's room for my rain suit and water bottle on the floor. Except for the small difference in headroom, the Zoid 1 actually feels roomier than the Hubba to me.
The Zoid also comes in a two-person version.
Good luck, and enjoy the kids.