In recently Diablo 3 Community Commentary reports, Diablo Stats stands out. This is an interactive hero progression site created by REK.
The goal of Diablo Stats is to track hero progression over time and make item comparisons easier with built-in damage and effective hit point (EHP) calculators. It's a great way to see how your heroes' stats change and progress over time, and Rek would really enjoy if other players jumped in and offered feedback so that he can further refine his project.
You can use this website by visit Diablo Stats and enter your BattleTag in the Add or Search box on the top right. A page will be generated for your account for you to dive into and compare with other players.