DT rock. They're lighter, smoother, less likely to need serviced, and simpler to do when it is finally necessary. The only specialist tool required is the tool to remove the splined seat for the inboard star ratchet ring – you need this to replace the driveside bearing in the hub shell. You might need this once every 5 years…. The bearings last really well (esp since they changed to SS bearings).
Hope are great bang for buck items, but they are heavier, MUCH draggier and need much more frequent bearing replacements.
I've got one bike with Hope and three with 240s, so do have experience of both.
King are beautiful, but impractical, and the rear is draggy.
DT!