Having used all three, with SharpRaw in demo mode which as far as I know is fully functional except it won't save, the ease of use of the Adobe plug-in is as far above SharpRaw as SharpRaw is above the Contax software, maybe more. Speed-wise, Adobe is at least an order of magnitude faster than either.
It takes my dual-Xeon 2GB memory U-SCSI 320 Raid system about 48 seconds to load a raw image into SharpRaw, plus it currently doesn't use the camera's original white balance point so it uses some generic grey-level value. Initial image is nowhere near where I want to be, just like the Contax developer.
Adobe does it in 3 seconds, never mind that you get an immediate thumbnail in the file open browser, and the default settings placed me 85% of the way there. After some use, you can easily set up defaults for generic cases that will take you 95% of where you want to be.
Once there, the controls in Adobe are immediately intuitive and effective. SharpRaw, well, let's say cumbersome at best relatively speaking. Useability and effective-feature-wise, Adobe is by far the king. NDA won't allow me to discuss particulars, but there are many features in Adobe that make working raw files a joy.
SharpRaw lets you load in only one image at a time. True, you can only be handling one raw at a time in Adobe, but you have the ability to see something already imported if you place your windows right.
A correction in Adobe is basically instantaneous - SharpRaw is about 10 seconds. Obviously YMWV, but the relatives should be about the same.
Your workflow will take at least ten times less time in Adobe as far as getting a nice looking image ready for further tweaking you may want to do in Photoshop, not to mention that you're already in PS.
Do the math if you're doing 30 images, and I have yet to find a better result out of SharpRaw. Maybe I haven't been able to understand it enough to use it to its fullest advantage working in demo mode. I was using SharpRaw 1.43, maybe Albert can shed some light here as to how he sets up & uses the licensed version.
One really bad thing I noticed about the Contax software is it will send my CPU utilization to 25% even though I'm not doing anything in it! Slick design ... anybody else notice that? I think you need to process the first raw image to see that.
Cheers,
DJ