Just got back from a 14 hour workday man, don't make me work more!
Chinos - How to Prevent Wrinkling/Creasing at Knees? - Page 2
Styleforum Top Picks
I don't think any quality of chinos is going to eliminate the creasing, if it's down to his anatomy, for instance, having prominent calves etc. It's the fit of the chinos that needs to be addressed, in order to eliminate the creases at the knees. The chinos need to be wide enough so they hang well, and uninterrupted, without catching onto your calves etc.
Just in case anyone is interested. I found a (two-part) solution to my problem.
1. As many of you pointed out, if the pants are too narrow/tapered below the knees, that exacerbates the problem. So, I bought a pair of chinos from Gap, and didn't get the legs tapered, as I had been doing in the past. The knees still wrinkle, but only to the extent you would expect.
2. I found the perfect pair of chinos - at least in terms of what I want out of a chino - the Ralph Lauren Suffield Chino. It is lighter than any pair of chinos I've ever owned/tried (other RL chinos, BR, Gap, etc.) plus it fits perfectly (more on the relaxed side).