I prefer Rostropovich's more "emotional" presentation.
Samhar - I initially wrote the same thing in my post - i.e. that the Starker performance feels more intellectual, while Rostropovich feels more emotional - but then I rephrased it because I didn't want to anger any Starker fans. ;-) But I agree with you about this impression.
I also agree with the folks who suggest getting multiple versions of the Suites. I have three versions and I listen to them all, depending on my mood.
Bryon