I found a website which provides Ret gear rankings.
The website dynamically updates the rankings based on your current stats. So, put in more AP and you’ll see that crit gives you more dps on next item upgrade etc.
You can also restrict the list based on a number of qualifiers like instance type, and pvp rewards etc.
Also it will calculate your best gem options per piece, taking the socket bonus into consideration.
Please be sure to provide him some feedback on the site!