It is not a matter of which "set" is best for you but rather you should examine each individual piece in those sets and mix and match. If you are going after a "set" to increase your emblem aug, don't. It no longer matters what type of armor you have (color), what matters is the tier is the same. Everything will be based on your chest item as the determining tier. The more armor you have of an identical SOD tier equal to your SOD chest, then the better your chest aug emblem will be. Maxing the stats on your emblem will never happen with group essences, you will need raid essences to gain max stats from the emblem.

If what you seek is to just wear a complete set for the looks - then select the color that suits your fancy some types of armor such as arms will offer more avoidance on one set than another set... while the feet will be the opposite for benefits. Personally I would mix and match.