My opinion is the Qw218/CS4080 will give you what you need for live acts. I like the fact that they are built taller and not so much deeper so they get the tops up higher. As far as the hip hop or crap or what ever it's called today I have no long term idea of how well they would hold up. I try to avoid that music like, like, the accordion
nothing good can come from it. I have had it run through my subs and it will rattle things about the room and I guess if you put some kind of metal on the floor or something you could get that car trunk buzz they like.
On a lower note the Versarray 218 will go lower and hit harder and has tilt back wheels and will still run off the 4080 but more power would really wake them up.
On your last post is that "80hz at a 12BW drop off" the upper corner on your sub crossover? It seems a bit high for my taste, thats right in the middle of the kick. I would raise it to 100 or at least 90 with a LR24 but thats just me.