DT Swiss R465 (replaced the RR1.1, same rim, new stickers). But I wouldn't run anything wider than a 35mm tire on them.

I saw someone else mention the Velocity Dyad, which would be good for running some wider (40 - 42mm) tires.

I dig my Sun CR18 rims, but they're a sleeved joint rather than welded.

I'm not a fan of the Open Pro, especially if you're going to be beating on it with curbs and potholes. I've seen too many of them with eyelets ripped clean out with a surrounding section of the rim.