For me fit, feel, and comfort and the most important factors. I really like Plantino Luxe 40 which are not called something else now. Silvia Grandi Silk 40 are right up there for me too. I've started liking some of Kunnert's offerings as well their support styles are very comfy and last a long time. I've also started buying a Celia de Rapheal Daily 70; great for flights and when you need that extra compression for sore legs.