Subwoofer Differences and Choice


I currently have B&W 802N speakers. How much of a difference in musical quality between the following subwoofers and which would you choose and why :

Sunfire Solitaire and Signature (12?

JL Audio F113 or F112?

B&W 825 and 855?

Which subwoofer would you choose?
ravendog
Thanks. I have a 350A Belles amplifier and 120A Belles preamplifier with the 802Ns, if this helps.
I would take two F112s over a single F113. More even bass response in room, possibility of stereo placement. Also rumor has it that JL employees prefer two F112s as well.
Funds permitting get 2 x JL 113. Better still - throw in a fully discrete 2 channel SVS sub equalizer.