I like how all the rules was made more "basic" from 2nd to 3rd. In particular what weapons/wargear is avalible, there was way to mcuh wargear that was unneccesary in the old edition, both becourse some thing did practically the same but had diffrent fluff. Theres fewer "choices" yea, but they all have a role.
The rotten thing is though, that when a new edition is made and all the kodex´s get re-written, the kodex that are first made is sort of the "basis" for writing the other kodex´s, and the teams that enter the fray last seem to break the "keep it simple" idea... loads of special rules compared to the earlier kodex´s in each edition...
Wich again causes all the kodex to be re-written again and AGAIN, untill a new editons out and it starts all over.