Of the tuners mentioned, I only have experience with Rodgers and Robson. I found the Rodgers to be pretty much flawless in both design and function. My only issue is the weight of the tuners in comparison to the Seidel tuners that I was trying to mimic. The Seidels were a 19th century tuner and are featherlight when compared to either the Rodgers or the Robsons.
The Robsons performed well functionally, but lack the elegance of the Rodgers and were extremely heavy. Just my $0.02.
Here are the Rodgers (buttons by Burton LeGeyt).
