I don't have experience with many stands, but I've been completely happy with my Park Tool PCS-9. It's sturdy, well-balanced, and reliable, so we can check off your stated criteria. Replacement parts, should you ever need any, are available from Park Tool.

The negatives: (1) The clamp, although it's well-built and satisfactory for my needs, isn't quite as nice as the ones on Park's higher-end models. (2) The stand, when folded down, isn't super compact.