A couple of years ago I went through the same paces of looking at which were best for me, no longer wanting to carry seperate shorts. I looked at just about any maker/model I could think of. I had a set of features that were important:
1. Not too heavy or flimsy
2. Shorts had to have an inseam longer than 7"
3. Plenty of pockets and most zippered
Cloudveil came into conciousness because Ryan J. called them out on one of his gearlists and they seemed to be goto for him. After looking into the CLOUDVEIL SPINNER CONVERTIBLE pants, I was sold. I shopped for deals and got the regularly priced $135 pants for half.
The materials stretchiness/comfort coupled with durability are the key to these pants. It had every other feature I was looking for as well.
http://www.cloudveil.com/mens/pants/spinner+convertible+pant–CV00008/
David P. might consider the length or position of the pack itself. When I notice that dreaded downward push on my pants from the belt…it usually has something to do with my pack adjustment.