Trust us, get the AA's!
For an all around "does everything well" speaker, I haven't found anything under $600/pr MSRP that competes with it.
Of course is my subjective preference, but I liked them better than the Elac UniFi and the Ascend Acoustics 340's!
I play in 3 Big Bands in the Atlanta area, so I use the acoustic sounds I know best (trombones, saxes, and trumpets) as my litmus test...though I certainly listen to a broader array of genres on my audition CD.
For Bass, the $1000/pr SVS Ultra Bookshelf (which also have a 6.5" mid-woofer) are the least expensive speaker (normal street price) I have found that compares/beats the AA's!
The best reference points I have as far as a speakers that challenge the AA's is the (now discontinued) Emp E41-B. While the RBH/Emp is very bass deficient (with a 4" mid-woof). The EMP's detail of it is a step up from the AA's (which have better detail than the other competitors I have heard). However, overall, I would still choose the AA's because the bass not only comes through as low notes, but often adds an ambient "solidness" to instruments with higher fundamentals.
I like the Canton Chrono 502.2's I got from A4L for $360 better, but this is a ~ $950/pr speaker that was heavily discounted. It doesn't have quite the bass (6" woofer used) of the AA's but makes up for it with better detail, IMHO.
As always, Dennis has extracted all of the performance he can out of the drivers he uses; thus, ultimately, it comes down to the quality of the drivers that the budget allows and I don't think you can find better drivers than the AA uses for the ~$215 price-point! Using large quantity discounts, large manufactures can buy better quality drivers for the budget, but once you add their profit margins, you won't see it on the shelf!
Info on the EMP E41-B:
http://www.audioholics.com/computer-speaker-reviews/emp-tek-vt-40.2