Between my P10s, P9s and P14's i've also handled all ACR pant textiles except for epic cotton.
DS: overall winner as far as balance/daily usefulness goes. Good water resistance and dry time, excellent stretch, good next to skin comfort, good stacking/drape, excellent colorfastness, good breathability.
CH: overall winner as far as style/comfort goes. Great next to skin comfort, great breathability, luxurious textile, decent drape, excellent colorfastness but essentially no weather protection.
E: overall winner for weather performance. Good water repellence, great dry time, decent breathability, excellent drape/stacking.
CH-melange: surprisingly good dry time but moderate water resistance, good stacking and drape, good stretch and next to skin comfort, the most "unique" looking of the textiles. Good colorfastness.