Help me choose a sub

I am trying to choose between three different sub choices. They are as follows: #1 Two Talon Roc 12's in stereo mode plus a Aerial Acoustics SW12 for LFE #2 2 SW12's in stereo mode #3 A single Wilson Watchdog My room is 15 x 20 with 10 foot ceilings or about 3000 cubic feet. I listen 50% two channel and 50% HT. I am using a Lexicon MC12 for a processor. The Rocs seem to be better for music but the SW12 goes a lot lower. I don't know much about the Watchdog except what I have read.