Maybe its just me... but I think allot of people reminisce about AA but forget that AA didn't put out as much product as DST, or wasn't without issues.
For the AF line, they did Enterprise, the Borg, and they got most of the TOS crew. Yes they had some great stuff... but they also had some misses too.
The Borg figures were awesome, but completely unrelated to anything.
The Enterprise crew head sculpts are great, but the body and the articulation was experimental and a failure IMO.
The Enterprise playsets were awesome... but incomplete!
The Away team were fantastic and really shine as the best overall effort of the AA era.
Likewise the TOS figures, while overall fantastic, most people would prefer plastic to the rubber tunics, and DST had to take it over to finish off wave 3.
AA did the Enterprise Phase pistol and communicator, and technically the phase pistol is too small... they did design the phaser which is awesome, but the rest of the Tek came out under DST.
Gotta give DST credit for finishing the TOS crew... and giving us the trial and tribulations set!
DST finished the TOS "mirror darkly" crew, then did the TWOK crew, TNG Crew, DS9 Crew, and gave us more ships and more Trek Tek.
I think people get it muddled a bit because there were a couple of years that I think overlapped and its tough to say if its AA or DST... but I think by 2006 it was all DST footing the bill, and then DST acquired AA outright by 2007. DST made an incredible go of it in the midst of a changing retail landscape.
So basically, I love AA for taking the risk and getting the ball rolling... I love the TOS line they did and give them credit for completing the TOS and ENT crews... but to me DST outshines them as they finished my Away Team Tek, and completed a TOS TWOK Crew, Mirror Darkly Crew, TNG Crew, and DS9 Crew.