Photoshop Elements 9 or 11 ACR

I use Lr 4, Cs5, and Elements 10.  Personally, I much prefer the pv2012 version of ACR that is available with Cs6, Lr4 and Elements 11.

I shoot RAW 100% but when I started procecssing RAW using Elements, I found the experience very frustrating with the limited controls avaiable with the Elements version of ACR.  When I moved to Lr, I found the PP experience much more rewarding working with RAW.  And I found that by using Lr, I seldom needed to use Elements/Photoshop Cs.

If you like pv 2012 of ACR better, I would recommend moving up to Lr4 and using ACR 6.7 in pre  11 versions of Elements to move into Elements when you need further PPing.