I currently have reds, super reds, Swiss 6, G3 and Bronson Raw bearings in various setups. I can barely tell any difference with any of them as far as speed but I can say the Swiss 6 that I have are around 10 years old but I just cleaned them and put them in my newest setup and they feel smoother than ever. Before that, I had one setup with reds and one with G3 and between the two, it was the only time I think I noticed a slight difference where the G3 might be slightly faster. But those were also new G3s in newer 54mm wheels compared to reds that are also around 10 years old, haven’t been cleaned in a while in old 51mm wheels. Basically, it doesn’t seem like I’ll ever need new bearings again with what I currently have but if I ever had to buy a new set, I’d probably go with G3 or Super Reds because since they seem like the best balance of value and maybe a slightly perceivable increase in performance over the cheapest options.