i also think that going just by the website that ada's are better and not just the weight, strength wise ceramic bearings etc. i know a guy that had lightweights and sold them as they flexed so much that they rubbed on his brake pads. i'd love to here from someone who's ridden them

The test of the ADAs mentioned above was also in "Tour" this year.
they were considerably WEAKER than the Lightweights (between 10 and 20 N/mm, if memory serves).
The wheels tested were Edward Zimmerman's personal set, who is a close friend of ADA's Cees Beers.

tour 7/2003, page 98
"DECEIVINGLY SIMILAR"
Lightweight or Ada? Both High-Tech-Wheelsets made from Carbon and Kevlar look deceivingly alike and are often reason to arguments among experts: Which pro is on which wheels? A reason for the similarity may be that the dutch ada-owner Cees beers used to be sales partner of Munich manuafacturer lightweight. He copied the successful wheel for large parts, technically it is no match for the original. Stiffness is 38 N/mm for the rear and 56 N/mm for the front wheel. The Ada-Wheels also don`t score concerning aerodynamics. Compared to the carbon blades of the lightweight the bulky Kevlar spokes cause much more drag. But the Ada are lighter: wheelset is 1160 gramms, front 20-spoke 525 g and rear 20-spoke 635 g. This makes the Ada set about 100 g lighter than the Lightweights in the "tour" test 7/02. The weight advantage is credited mainly to the rear hub, an original construction and compatible with shimano as well as campagnolo. Two allen keys are enough to change casette and rotor. During the test ride the less stiffness of the rear wheel was noticable through rubbing on the brake pads when pedalling uphill standing up. Furthermore the rear hub made a noticable crack when starting to pedal after freewheeling. The manufacturer explained this with unprecisely manufactured ratchets in the freewheel of the tested wheel; totaly inacceptable when you look at the pricetag of 2950 Euros for one wheelset.
The wheelsets are only manufactured to order, they are available in 26 " and 28 " for road and track. The spoke number is variable depending on rider weight and use. Only available through direct order plus 70 Euros shipping (in europe). delivery time: at least 2 weeks.

A while ago someone posted a translation of the ADA test.
Stiffness was 56 N/mm for the front and 38 N/mm for the rear:


There was also a test by a British magazine, but I can't find it anymore on the web.