I used to use Dexters. After my 3rd pair in 12 months of sst6's, I had enough. Heard rave reviews of the Dynorooz so I thought I would try them.
They are lighter, stronger, and the tour ultra's have a "cleat sole" that allows me to fine tune my slide in smaller adjustments. They also take a massive load off my knee because they tend to shape to the foot better, and don't jar when they finish sliding.
They do tend to slide a fraction more than dexters = soles, which also helps combat synthetic approaches better. Can't get them anymore, but the new models are called 3G shoes, and are produced in the Global900 plant (the same guys that make the remote controlled bowling balls)
All preference, but the Rooz have my vote...