I like Archer, but it pails in comparison.
Archer is not as good, but it is actually a good companion type show I think. In the same way AD uses tons of call backs, lots of subtle and esoteric references, a bunch of mumbled lines from characters on the boundary of scenes that kill, etc so too does Archer. I've told people that if you like AD, you ought to like Archer for many of the same reasons...provided you can get passed the fact that it's animated. Some can't.
But yeah...AD is an all time great comedy.