I have the Dakine one, they come in two sizes 185 and 200 although I ended up with the 185 by mistake but it still fit in 189 Hellbents (193/4ish).
The bag has straps for 2 pairs of skis to fit in, you can get a third pair in but it will have to sit on top of the other skis. Pockets on the outside will easily fit your boots as well. Poles are easy just stick them in there. Lots of padding, cant fault the bag.
I manage to stash all my outwear and general shit in there no problem. However I wouldn't put your boots in there as well as all your other stuff as it just gets too heavy to be honest if you have to lift the bag instead of just pulling it around, plus no airlines will take that much weight, your pushing it with just 3 pairs of skis.
Armada bag seems like pretty much the same design/dimensions to be honest though, haven't used it but thats my guess. Dakine's bags last though always had a good experience with them.