I vote other and suggest the Acendant Audio Havocs. The Qs would be a good choise, but coming from (2) 18 BTL, they may not be loud enough for you. (4) BLs would be nice and loud, but with the power you have, you would have to use the base model or only the basic upgrades. Those subs really shine off of more power, though your kickers put out plenty.
The Havocs are different, and if im not mistaken, Shawn from Fi was running them for a min, but dont quote me on that.