Cables offer more control and are especially nice for softer boots. Cables without pins are simpler to get in and out of since you don't have to line up the pin holes. Cables with pins have the advantage of a choice. You can leave the cables in your pack for the uphill climb and not have to monkey with them till you need them. Once I was on a trip where one skier's binding broke and we rigged it with a spare cable.
Cables can abrade boots and increase the overall width of the binding's profile.
Rainey Superloop bindings are not releasable but noteworthy. Made of stainless steel, they claim snow will not stick to the metal. They are not compatable with Voile plates since the cable throw for the binding needs to mount where Voile's release mechanism mounts. They offer a lifetime warranty. All in all, I would strongly recommend bindings that release.