I think if you run a survey you will mostly get the results of what people have not what is "Best". I think the best opinions will come from those that have tried a few different options like Tom. I have the RS9000xls and I like them, they are definitely softer than my OEMs that I removed. Two of which weren't working. But I don't have anything else to compare them to. I have noticed that they feel softer since I did the 5 spd swap because I have better acceleration now. I should probably adjust them up but haven't bothered.
Seems like fewer people have gone with the OMEs but I've never heard one bad thing about them.