I've heard nothing but good things about AEV lifts - from people that want a mixture of streetability and trail use. For the money, you can get a top-quality lift that is more oriented towards serious crawling....but that's not for everyone.
As an example - AEV uses control arm relocation brackets instead of adjustable control arms. This means that a rig with their lift will probably ride smoother on the road...but it will give up some clearance in an off-road situation. The question that you have to ask yourself is this - what do you want your rig to do?