Cameco Corporation (NYSE: CCJ) is the world’s largest publicly traded uranium miner, while tiny Dension Mines Corp‘s (NYSEMKT: DNN) key assets are uranium development projects. One is big today; the other could be big tomorrow. The uranium industry is in the doldrums right now despite a positive outlook, which may make Dension appear a better option. But Cameco is still the right choice in my book.