I would go with the GAL galaxy. In my experiance they have proven to be a reliable and friendly controller to work on. The other thing to concider is support, if you go with non-proprietary controls any company can obtain support from the manufacture. Some of the large companies do have tech departments to support competitor's products but that still does somewhat limit you to who can maintain the equipment down the road.
GAL or Elevator controls can provide either a AC or DC drive depending on if you will keep your exsisting hoist machines. Do you know if you have geared or gearless machines?
