I think once you stick around the lanes for a while and talk to more people your ideas will change a good amount. Again, I'm not saying RD/Atomic are bad, but it has been proven over many years that DD(non spl built) subs can and do keep up with all other subs. In fact over the years DD has set more records then any other sub woofer manufacturer. That is not even a disputed fact.
Again, I'm not saying RD is bad, and I'm not saying DD is the end all sub. I'm just saying that they do keep up and will take the power.
SPL is a bad place to claim what sub is better though. As stated before each setup is completely different and each sub will perform night and different in each application. Drop in tests don't even mean anything in the lanes. Just because Joe was .1 DB louder with brand x then with brand y, does it mean it will be that way for everyone. I have see cheap subs (under 100 each) out do more "spl" type subs many times.