bubblers are dwc(same thing)...aero is nice, because it recirculates allowing for easier nute management and labor...I am building recirculating swc/aero system...currently grow in dwc and it kicks ass....The only problem with dwc is nute changeout each week, if you go with this method, I would suggest filler tubes at the top and drain tubes to a main res at the bottom...trust me...when your plants get 3-5 feet tall changing nutes can be a bitch...hope this helps