ive got a yakima which is nice, x2 to above. I use a Thule rooftop cargo carrier as well for skiing on the yakima bars, so a lot of nice thule and yakima stuff will cross mojinate if they have universal clamping systems. A lot of the rest of the year I mount up yakima bike racks to the bars.
Seems to me the only difference between the two brands is going to be squared off bars vs round, otherwise the quality seems very comparable.
My only complaint is that they all require the wind fairing to be quiet and return fuel economy back to normal. Both Yakima and thule are pretty high off the roof, which is nice for hanging things like a snowboard, but it does create a heck of a lot of noise, and both systems are preposterously expensive.
Another forum member purchased "proline" racks, which were way cheaper and closer to the roof, and he said negligible on noise when he did this.
go to post #39 of this thread to see a comparison pic of a 123 with the proline and one with a yakima-
Push bumper