I'm in the process of researching a subwoofer for my home theater and have a few questions for ya'll...I realize Axiom has, from reading here, VERY good subs, but...

1. HSU versus SVS, who is "better"?

2. Is downfiring better than forward firing?

3. HSU has their STF-2, 10" downfiring, subwoofer for $399 and SVS has their PB12-ISD, 12" downfiring, subwoofer for $599. Is the additional $200 really worth it for an extra 2"? (please excuse the question, ladies, it needs to be asked!)

Thanks

VP100, M60ti's, HSU STF-2, Marantz SR7200, 55" Mitsubishi