I've had a few different ID setups
First was one 12" ID sealed approx 1.15 cube box, sounded awesome for one 12"
next, the trio of ID12's in my trunk with approx 900 rms , sounded f'kin amazing, way loud, low, tight , accurate, blended perfectly yet hit so loud you'd have a hard time breathing during certain songs
Next is a 12" IDQ sealed, sounds great, never really had it there long enough to give a good review on , seems to hit the low low's a little better than the ID
Now i have my pair of 15" IDQ's sealed up against the back seat, gets so low it shakes shit that I didn't know was dynamic.
Overall I'd say go with ID's , IDQ's if you want a little more SQ, i just liked the output/sq blend of the ID that I wouldn't hesitate to go either way.
Only AA sub i've ever heard was a 15" ava, was comparible to my IDQ's