There's a lot of love for the Mavic Open Pro, or if you want something heavier duty, the Mavic CxP33 or Velocity Deep V. I've only seen one other person hyping the DT Swiss RR1.1 and RR1.2 rims, though. I'm building my new wheels around RR1.1 rims; 20g lighter than Open Pros, same overall profile. Single eyelets, wear indicator braking surface. I think the reason most people steer clear is because they're about $15.00 more (each) than the Open Pro. I found mine at AE Bike for the same price that Performance had the Open Pro on sale.
The RR1.2 is a deep section rim like the CxP33, except that it's heavier than the Deep V or the CxP, and doesn't come in as many colours as the Deep V does.