I have OW and I have to say its freakin awesome! Im dont know if you know of the Baker orchid care sheets (
Orchid Culture - Charles and Margaret Baker) but these guys have done EXTENSIVE work on individual orchid care sheets and all of their stuff is included with OW (ie. every species they worked on is in OW). A lot of their info has also been transferred to easy to read format with various charts that significantely enhance what the Baker's did. Thats in addition to the pics, some of which are provided by our very own Mauro Rosim (so you know they are good!). While Ive never used AQ, I would definitely recommend OW to anyone who is serious about keeping, collecting, breeding, whatever their orchids. It hurts to buy, but the pain quickly subsides when you realize what you got!