Here's a wet-look I did quickly using particles. The hair is dynamic hair. Could be tweeked even better for close-ups or whatever, but I definitely think particles are the way to go for such a thing. They're quite powerful. Someone skilled at using them can make them travel down the course of a mesh's shape, leaving behind a wetness "trail" like real water droplets do. I don't know if Bryce has a particle system or not, but Poser has that Metaforms plugin I think. However, I don't think the Poser particle plugin would be sufficient to achieve the rivulets of water from droplets running down the skin.
Tools : 3dsmax 2015, Daz Studio 4.6, PoserPro 2012, Blender
v2.74
System: Pentium QuadCore i7, under Win 8, GeForce GTX 780 / 2GB
GPU.