Not sure what othres have used and what the outcome is/was, but, if you did not go for the Pro-System with Eibach tuned dampers, next bet would be KONI since they have been developing with Eibach for a while now. Their spring/damper combos work well for mutliple applications & platforms.
I prefer Bilstein or H&R but not too sure what their specs run with the Eibach especially if you are using rears with a sleeve-over coil set-up instead of a true coil-over replacement unit.