I have a Skimz and its a great skimmer. The 1st gen pump was crap but, the current one I have had for 2yrs is great. Its compact, easily adjustable and I love the DC pump. If you need pics of the nog it pulls I would be happy to supply them.
I've never owned an Aquamaxx skimmer but, I know someone who got one with a defective pump, bad seams and I believe the bubble plate had issues. Not sure if I would go that route. If you order from Marine Depot I woudl give them a call and ask if they have a lot of issues with the new version of Aquamaxx.
People are usually fanboys of whatever skimmer they have. If I could do it over again, I would probably go Deltec or ATB.