I just compared them to the fastest products listed on the GAW website.

GAW
Efficiency: 33.333 J/Mh
Cost per Mh: 13.888 USD per Mh/s
Value: 462.932 action $ per Mh^2 (Yeah, I'm just making these units up)

Innosilicon
Efficiency: 8.837 J/Mh
Cost per Mh: 40.697 USD per Mh/s
Value: 359.649 action $ per Mh^2

Zeusminer
Efficiency: 22.5 J/Mh
Cost per Mh: 21.498 USD per Mh/s
Value: 483.694 action $ per Mh^2

AlcheMiner
Efficiency: 8.594 J/Mh
Cost per Mh: 25.391 USD per Mh/s
Value: 218.201 action $ per Mh^2

(action = joule * second)

As you can see from the above numbers, AlcheMiner have the most efficient ASICs out of the bunch with Innosilicon having a similar efficiency. AlcheMiner costs far less per Mh/s though. My multiplying the efficiency and cost per Mh/s together you get the "Value" of the ASIC and Alcheminer destroys the listed competition in that regard.

I don't follow the Scrypt mining scene so I'm not sure what ASICs are available now. What competition were you comparing them too?