Mike, you are asking the question like a B&W photographer. As a color landscape photographer contast is a concern, but not the biggest one. More important is the quality of the color (some people confuse this with saturation); this shows up for example, in the way greens are recorded on the forest floor, whether there is any warm cast to the colors, etc. Look for the subtle colors that a scene may present - in those circumstances, a color transparency film, like Fuji Velvia, will do a better job than a color negative film. You will find that many color landscape photographers will mitigate the contrast range using split neutral density filters.