I used to have SKS Bluemels on my Spesh Diverge. They were thin aluminium coated with plastic I think. I ran them for 7 years but then bought some PDWs earlier this year. Installed them a few months later and they are vastly superior to the Bluemels. Don’t know why I procrastinated getting them fitted.
The twin strut stainless steel stays of the Bluemels looked ugly in comparison to the PDWs single strut black aluminium stays. Plus, whilst not only looking much, much nicer they are vastly more rigid. I’ve taken them on some fairly rough terrain without so much as a scrape against the tyre or any of the wobble I had from the Bluemels. I’d even be confident fitting a dynamo light to the front fender as the tip is so rigid I’m pretty certain the light beam wouldn’t be adversely affected.
Additionally the PDWs are easier to fit and all the spare parts are available.