That's a tough one with the all-black rims. I'm in your exact boat except I've decided on wide rims for my future Disc Trucker 26". I'm sold on all black Velocity Cliff Hanger rims (28mm). They are the bigger brother of the 24mm Aeroheat rims (do the Aeroheat's if 24mm isn't too wide) but wider and 15% thicker walls. I'll be getting the Cliff Hangers with 40 holes mated to Phil Wood hubs with Wheelsmith spokes built by Peter White. Lifetime warranty if you use only the parts that he recommends (Velocity, Mavic, Wheelsmith, etc).

Ive read too many complaints with Mavic so that's a no-go for me.

The thing with Sun rims is that they aren't straight. Meaning different tensioning on each spoke. Meaning some spokes will be more tight than others. Meaning more stress on some spokes. Meaning breaking spokes. Meaning you get what you pay for.

P.S. I'm only 162 lbs but I'm sick of broken wheels, hence the 40 hole choice and overbuilt wheels, especially on a loaded tourer while curb hopping.