As I posted originally, you usually get the best value in the B level from the major makers. Spending more will not get you any appreciable improvement in basic quality.

However, if ease of field service is a high priority, here's a feature to look at. Some hubs now use a bearing adjustment similar to a threadless headset. The right cone is fixed to or slides against a shoulder on an unthreaded axle. the left cone uses a compression ring, and is adjusted with a threaded dust cover which is locked in place when finished. Besides not needing heavy tools, this system allows final adustment to zero play while the wheel is tight in the frame.

The image I linked is a Campagnolo hub, and tey don't offer anything suitable for your needs, but in the last few years, others have adopted similar systems.