I am similar shaped and have found the Mountain Hardware and Arcteryx pants to be cut roomier in the hips and thighs. The columbia pants fit ok for me but the others seem roomier especially in the thighs.
Curvy size 12/14 here, I also wear the Mountain Hardware and Arcteryx and find they are the best fit for bigger thighs and smaller waists. It took me years to find these, but they are my favourite!