Kimmo

That's it, AFAIK. Sucks, but unfortunately plenty of folks see nothing wrong with cartridge bearings in hubs, so there you go.

Out of the two, Shimano has the best design IMO, due to the cassette body being a stressed member that places the drive side axle bearing next to the dropout where it belongs. Unlike Campy, Shimano also uses cup and cone bearings for the cassette body, which are adjustable via shims, if you can crack open the cassette body (two notches in the bearing cup, left hand thread).

Mavic hubs are only cartridge bearing, and most have a poxy bushing for the inboard cassette body bearing, but at least their drive side axle bearing is towards the dropout.

If you could find a brand that uses angular contact cartridge bearings with adjustable preload, that'd be sign there's been some actual engineering done instead of this cookie cutter crap that passes for hub internals these days... Not sure anybody's bothered though.

BTW, 'high end alloy wheelset' is getting to be a bit of an oxymoron these days. Shimano's ally/carbon rims are pretty damn nice, but I'm not sure if they've got around to doing them wider like everyone wants now.