This is Dwarf Orinoco again:
I rate California Gold vs. Dwarf Orinoco as follows:
Hardiness - Same
Height - Calgold taller (6-7ft under my conditions) Dwarf Orinoco (5-6ft)
Bunch size - Calgold a few more hands
I don't see Calgold to be any Hardier than Dwarf Orinoco. And it does sucker just as much if not more.
I find Ice Cream and Praying Hands to be just as hardy also. But size is definately a factor.
Mike