Last time I changed mine I went for the KMC X1 Rohloff, partly because it's shiny
Just over 8,000 miles and it's used up all the adjustment on the Mercury's mini EBB, that'll do me and I'll probably go for the same again. I was tempted to take a link out, add a half link and get a few 1,000's more miles, but it's coming up for it's Spring service so I might as well change it now and forget about it.