If we're voting, I'm with the guys who say that actually building a habitable, space-going structure with rotation for gravity will be a huge engineering challenge and there's no guarantee it could be done at all.
The rotating container is a simple concept, but the closer you get to actual hardware that can support human life, the harder it becomes to assemble.
NASA would sell the idea to Congress with reasonable-sounding cost and schedule estimates. Five years and a hundred billion dollars, they'd promise. Then, once NASA had its funding, the schedule would start to slip and the cost would balloon. Twenty years and half a trillion dollars later, Congress would pretty much know they'd been had.