The FSLabs is the opposite. I has way richer systems which will cost you time to study, prepare and then fly. To some people, i would say "casual simmers", will prefer the aerosoft while "hardcore" simmers will the FSLabs. Which one are you?
FsLabs is awesome but its too costly performance wise in heavy autogen areas, and I have a pretty fast system. That kills some of the experience IMHO. Aerosoft works very good too and the performance is much, much better. If I try to land in KLGA or KBOS with FsLabs I get under 15 fps and that is not acceptable for me.
The sounds in FsLabs is one thing I miss when I fly Aerosoft bus, and I can say that the sound is amazing, as well as the cabin lights (I prefer the white lights than yellow). I like to power my aircraft from cold and dark and both are very good at that.