The trick with colour comparisons is knowing what the original scene actually looked like, so that you can tell which is more accurate. With the samples shown it looks like the 920 has corrected more for the white balance on the indoor shots, I think is probably too warm in some of the others, but without being there I cannot be certain which is more accurate.
Of course colours are also a matter of taste. Many people prefer slightly warm and over-saturated, and manufacturers are going to be aware of this.
came across another comparison here, this time from PhoneArena: http://www.phonearena.com/reviews/Samsung-Galaxy-S4-vs-HTC-One_id3282
. The camera comparison is on page 3. The shots are all outdoor, so don't really tell us much about low light.