I bought the AO full rack with sun roof hatch and the full side rail. I also got the AO awing for the rack. I bought it just before I made the drive to North Carolina. The rack is awesome! I ran a half rack Conferr for many years and I have to say that the full AO is lighter and stronger than the conferr. Plus like stated above I bent the cross rails on the conferr with the weight of my gear. The AO will adjusted to different heigths so you can control how tall it is from the roof. I have mine so close that you cannot tilt the sunroof up or it will hit the rack. Just have to watch out for that! The rack is also pretty quiet on the interstate. The Conferr much louder.
I researched for a long time on the AO, Hannibal and the ARB. Results in my opinion.
The Hannibol was hard to find. The only place that I could get it was some Rover dealer in NY(shipping was more). The Hannibal does not have the slotted channels for the eye hooks(you will like these on the AO). AO price vs hannibal was around $300 more for the Hannibal(plus shipping price was more from NY instead of CO). The ARB rack is nice but very heavy. I did not want a steel rack because I knew I would be moving back to NC and the thing would rust in no time. With the steel ARB you would always have to worry about scratching the paint and having to touch it up or you would get rust. I know this because my ConFerr rack was rusted from all the marks from the gear.
I had my rack shipped from Slee to Portland for around $175.00(that included the awing which was a huge box). I picked it up at the airport and it fit in the back of my Tacoma.
Hope this helps.
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1997 LX450, sold
2011 Nissan Xterra Pro 4X
1993 XR650L XXX Bike
2006 KLX 250S
1977 Suzuki GS750
1963 Honda Dream 305