I like the DT Swiss rims because they weigh 415g, they have steel eyelets (important with alloy nipples), and have a reputation for indestructibility.
I ride a lot at night, and I need a wheel that can hit the unexpected and survive.
Y'know what I mean?
I ride with a 10w headlamp, but a dark night, wet pavement, and opposing car headlights can hide a pothole.
The DT Swiss RR 1.1 rims at 415g (with steel eyelets) represent the bottom edge of lightness for me.

The same thing goes for tires.

I have ridden with lighter tires than my present Conti Grand Prix 4 Season (front) and Armadillo (rear) combination, but I either got flats or, as in the case of one ultra-light flat-resistant tire, they got so chewed up in such a short period of time I knew a flat would soon occur.

In any event, the Cane Creek Volos come so close in weight to the lightest reliable wheel I can build, and the Cane Creeks do it for less money and FEEL so light because of their low rotating inertia, that it makes sense to just go with the Cane Creeks.

I had doubts about the Cane Creeks with 28 spokes, especially at my riding weight (215-235), but they have proven, so far, bulletproof.

My lbs has watched these Cane Creek wheels closely to see how they hold up.
Every time I go in to my lbs (WebCyclery) they check out the wheels and comment on how tight they feel and how well they've held their true.
I've easily got 5000 miles on them and have done nothing to maintain them other than clean them.