We've had a Hewitt
aluminum dock for several years and have been very pleased with it. It is a pure floating dock 32' X 8' with a 16' X 4' walkway. Our water goes up and down over 12' some years so a completely floating dock is the easiest solution.
They are very well built with good quality floats. Ours does not creak or make noise and is comfortable to walk on yet is not slippery. Also, they are based near you.