Just my tuppance worth, and just to name drop a little, I've used and worked with pure race dampers that cost (at the time) $2750 each (Ohlins TT44) as well as Penske, Koni, Bilstein and even old F1 shocks from the seventies (Girlings ?)
IMO Koni road dampers are as good as anything. My preference is for the twin tube type as they can be re-valved/rebuilt.
Mono-tube road type Koni's, unlike mono-tube Bilsteins and race Koni's can't be re-valved/rebuilt, but this isn't a problem for the average user.
Twin tube Koni's often also allow slightly more wheel travel than their mono-tube counterparts.
Bilstein are very good.
Delphi/de Carbon are very good.
The Ultimate Suspension shocks (built in Sydney) are very good.

