I've found the Fuji 160s better suited to mixed-lighting conditions than their Kodak counterparts.
both are terrific films, with either my choice of 160nc(Kodak) or Fuji 160s. both are negative films. just remember though, that reversal(chrome) films generally have a slightly higher resolution, but less in the way of usable dynamic range.
in the end though, you might want to ask this same question over at www.hybridphoto.com.